Home / 149,837.66-206,772.50-81,854.91

Finding the Fourth Proportional to 149,837.66, 206,772.50 and 81,854.91

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Solution

The fourth proportional to 149,837.66, 206,772.50 and 81,854.91 is: 112,957.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,837.66 : 206,772.50 = 81,854.91 : x
  2. Step 2: Convert to fraction form
    149,837.66/206,772.50 = 81,854.91/x
  3. Step 3: Cross multiply
    149,837.66x = 206,772.50 × 81,854.91
  4. Step 4: Simplify right side
    149,837.66x = 16,925,344,582.61
  5. Step 5: Solve for x
    x = 16,925,344,582.61/149,837.66
  6. Step 6: Final answer
    x = 112,957.88

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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.