Home / 126,372,665.80-189,558,998.70-105,965,331.40

Finding the Fourth Proportional to 126,372,665.80, 189,558,998.70 and 105,965,331.40

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Solution

The fourth proportional to 126,372,665.80, 189,558,998.70 and 105,965,331.40 is: 158,947,997.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,372,665.80 : 189,558,998.70 = 105,965,331.40 : x
  2. Step 2: Convert to fraction form
    126,372,665.80/189,558,998.70 = 105,965,331.40/x
  3. Step 3: Cross multiply
    126,372,665.80x = 189,558,998.70 × 105,965,331.40
  4. Step 4: Simplify right side
    126,372,665.80x = 20,086,682,117,097,668
  5. Step 5: Solve for x
    x = 20,086,682,117,097,668/126,372,665.80
  6. Step 6: Final answer
    x = 158,947,997.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.