Home / 149,710.66-206,591.94-81,714.16

Finding the Fourth Proportional to 149,710.66, 206,591.94 and 81,714.16

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Solution

The fourth proportional to 149,710.66, 206,591.94 and 81,714.16 is: 112,760.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,710.66 : 206,591.94 = 81,714.16 : x
  2. Step 2: Convert to fraction form
    149,710.66/206,591.94 = 81,714.16/x
  3. Step 3: Cross multiply
    149,710.66x = 206,591.94 × 81,714.16
  4. Step 4: Simplify right side
    149,710.66x = 16,881,486,839.87
  5. Step 5: Solve for x
    x = 16,881,486,839.87/149,710.66
  6. Step 6: Final answer
    x = 112,760.75

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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.