Home / 149,497.20-206,305.02-81,515.34

Finding the Fourth Proportional to 149,497.20, 206,305.02 and 81,515.34

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Solution

The fourth proportional to 149,497.20, 206,305.02 and 81,515.34 is: 112,490.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,497.20 : 206,305.02 = 81,515.34 : x
  2. Step 2: Convert to fraction form
    149,497.20/206,305.02 = 81,515.34/x
  3. Step 3: Cross multiply
    149,497.20x = 206,305.02 × 81,515.34
  4. Step 4: Simplify right side
    149,497.20x = 16,817,023,849.01
  5. Step 5: Solve for x
    x = 16,817,023,849.01/149,497.20
  6. Step 6: Final answer
    x = 112,490.56

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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.