Home / 137,873.95-206,869.82-66,849.10

Finding the Fourth Proportional to 137,873.95, 206,869.82 and 66,849.10

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Solution

The fourth proportional to 137,873.95, 206,869.82 and 66,849.10 is: 100,302.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,873.95 : 206,869.82 = 66,849.10 : x
  2. Step 2: Convert to fraction form
    137,873.95/206,869.82 = 66,849.10/x
  3. Step 3: Cross multiply
    137,873.95x = 206,869.82 × 66,849.10
  4. Step 4: Simplify right side
    137,873.95x = 13,829,060,432.74
  5. Step 5: Solve for x
    x = 13,829,060,432.74/137,873.95
  6. Step 6: Final answer
    x = 100,302.20

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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.