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Finding the Fourth Proportional to 149,497.62, 206,308.29 and 81,514.02

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Solution

The fourth proportional to 149,497.62, 206,308.29 and 81,514.02 is: 112,490.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,497.62 : 206,308.29 = 81,514.02 : x
  2. Step 2: Convert to fraction form
    149,497.62/206,308.29 = 81,514.02/x
  3. Step 3: Cross multiply
    149,497.62x = 206,308.29 × 81,514.02
  4. Step 4: Simplify right side
    149,497.62x = 16,817,018,077.23
  5. Step 5: Solve for x
    x = 16,817,018,077.23/149,497.62
  6. Step 6: Final answer
    x = 112,490.21

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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.