Home / 124,839.40-187,259.10-72,221.80

Finding the Fourth Proportional to 124,839.40, 187,259.10 and 72,221.80

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Solution

The fourth proportional to 124,839.40, 187,259.10 and 72,221.80 is: 108,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,839.40 : 187,259.10 = 72,221.80 : x
  2. Step 2: Convert to fraction form
    124,839.40/187,259.10 = 72,221.80/x
  3. Step 3: Cross multiply
    124,839.40x = 187,259.10 × 72,221.80
  4. Step 4: Simplify right side
    124,839.40x = 13,524,189,268.38
  5. Step 5: Solve for x
    x = 13,524,189,268.38/124,839.40
  6. Step 6: Final answer
    x = 108,332.70

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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.