Home / 103,660.56-155,487.96-72,516.24

Finding the Fourth Proportional to 103,660.56, 155,487.96 and 72,516.24

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Solution

The fourth proportional to 103,660.56, 155,487.96 and 72,516.24 is: 108,772.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,660.56 : 155,487.96 = 72,516.24 : x
  2. Step 2: Convert to fraction form
    103,660.56/155,487.96 = 72,516.24/x
  3. Step 3: Cross multiply
    103,660.56x = 155,487.96 × 72,516.24
  4. Step 4: Simplify right side
    103,660.56x = 11,275,402,224.47
  5. Step 5: Solve for x
    x = 11,275,402,224.47/103,660.56
  6. Step 6: Final answer
    x = 108,772.35

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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.