Home / 125,221.73-187,830.60-39,831.38

Finding the Fourth Proportional to 125,221.73, 187,830.60 and 39,831.38

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Solution

The fourth proportional to 125,221.73, 187,830.60 and 39,831.38 is: 59,746.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,221.73 : 187,830.60 = 39,831.38 : x
  2. Step 2: Convert to fraction form
    125,221.73/187,830.60 = 39,831.38/x
  3. Step 3: Cross multiply
    125,221.73x = 187,830.60 × 39,831.38
  4. Step 4: Simplify right side
    125,221.73x = 7,481,551,844.12
  5. Step 5: Solve for x
    x = 7,481,551,844.12/125,221.73
  6. Step 6: Final answer
    x = 59,746.43

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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.