Home / 107,390.31-148,519.76-93,938.19

Finding the Fourth Proportional to 107,390.31, 148,519.76 and 93,938.19

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Solution

The fourth proportional to 107,390.31, 148,519.76 and 93,938.19 is: 129,915.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,390.31 : 148,519.76 = 93,938.19 : x
  2. Step 2: Convert to fraction form
    107,390.31/148,519.76 = 93,938.19/x
  3. Step 3: Cross multiply
    107,390.31x = 148,519.76 × 93,938.19
  4. Step 4: Simplify right side
    107,390.31x = 13,951,676,963.94
  5. Step 5: Solve for x
    x = 13,951,676,963.94/107,390.31
  6. Step 6: Final answer
    x = 129,915.60

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1.5x scale

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.