Home / 137,608.92-189,901.88-76,356.22

Finding the Fourth Proportional to 137,608.92, 189,901.88 and 76,356.22

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Solution

The fourth proportional to 137,608.92, 189,901.88 and 76,356.22 is: 105,372.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,608.92 : 189,901.88 = 76,356.22 : x
  2. Step 2: Convert to fraction form
    137,608.92/189,901.88 = 76,356.22/x
  3. Step 3: Cross multiply
    137,608.92x = 189,901.88 × 76,356.22
  4. Step 4: Simplify right side
    137,608.92x = 14,500,189,727.69
  5. Step 5: Solve for x
    x = 14,500,189,727.69/137,608.92
  6. Step 6: Final answer
    x = 105,372.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.