Home / 124,872.30-187,308.45-72,416.70

Finding the Fourth Proportional to 124,872.30, 187,308.45 and 72,416.70

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Solution

The fourth proportional to 124,872.30, 187,308.45 and 72,416.70 is: 108,625.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,872.30 : 187,308.45 = 72,416.70 : x
  2. Step 2: Convert to fraction form
    124,872.30/187,308.45 = 72,416.70/x
  3. Step 3: Cross multiply
    124,872.30x = 187,308.45 × 72,416.70
  4. Step 4: Simplify right side
    124,872.30x = 13,564,259,831.12
  5. Step 5: Solve for x
    x = 13,564,259,831.12/124,872.30
  6. Step 6: Final answer
    x = 108,625.05

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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.