Home / 131,948.60-182,084.64-78,201.71

Finding the Fourth Proportional to 131,948.60, 182,084.64 and 78,201.71

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Solution

The fourth proportional to 131,948.60, 182,084.64 and 78,201.71 is: 107,915.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,948.60 : 182,084.64 = 78,201.71 : x
  2. Step 2: Convert to fraction form
    131,948.60/182,084.64 = 78,201.71/x
  3. Step 3: Cross multiply
    131,948.60x = 182,084.64 × 78,201.71
  4. Step 4: Simplify right side
    131,948.60x = 14,239,329,302.31
  5. Step 5: Solve for x
    x = 14,239,329,302.31/131,948.60
  6. Step 6: Final answer
    x = 107,915.73

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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.