Home / 105,003.12-157,542.26-45,006.42

Finding the Fourth Proportional to 105,003.12, 157,542.26 and 45,006.42

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Solution

The fourth proportional to 105,003.12, 157,542.26 and 45,006.42 is: 67,525.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,003.12 : 157,542.26 = 45,006.42 : x
  2. Step 2: Convert to fraction form
    105,003.12/157,542.26 = 45,006.42/x
  3. Step 3: Cross multiply
    105,003.12x = 157,542.26 × 45,006.42
  4. Step 4: Simplify right side
    105,003.12x = 7,090,412,896.28
  5. Step 5: Solve for x
    x = 7,090,412,896.28/105,003.12
  6. Step 6: Final answer
    x = 67,525.74

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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.