Home / 124,478.00-171,753.87-72,785.15

Finding the Fourth Proportional to 124,478.00, 171,753.87 and 72,785.15

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Solution

The fourth proportional to 124,478.00, 171,753.87 and 72,785.15 is: 100,428.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,478.00 : 171,753.87 = 72,785.15 : x
  2. Step 2: Convert to fraction form
    124,478.00/171,753.87 = 72,785.15/x
  3. Step 3: Cross multiply
    124,478.00x = 171,753.87 × 72,785.15
  4. Step 4: Simplify right side
    124,478.00x = 12,501,130,332.26
  5. Step 5: Solve for x
    x = 12,501,130,332.26/124,478.00
  6. Step 6: Final answer
    x = 100,428.44

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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.