Home / 131,897.79-182,027.88-74,517.21

Finding the Fourth Proportional to 131,897.79, 182,027.88 and 74,517.21

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Solution

The fourth proportional to 131,897.79, 182,027.88 and 74,517.21 is: 102,838.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,897.79 : 182,027.88 = 74,517.21 : x
  2. Step 2: Convert to fraction form
    131,897.79/182,027.88 = 74,517.21/x
  3. Step 3: Cross multiply
    131,897.79x = 182,027.88 × 74,517.21
  4. Step 4: Simplify right side
    131,897.79x = 13,564,209,759.81
  5. Step 5: Solve for x
    x = 13,564,209,759.81/131,897.79
  6. Step 6: Final answer
    x = 102,838.79

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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.