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Finding the Fourth Proportional to 187,654.31, 258,962.87 and 101,613.27

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Solution

The fourth proportional to 187,654.31, 258,962.87 and 101,613.27 is: 140,226.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,654.31 : 258,962.87 = 101,613.27 : x
  2. Step 2: Convert to fraction form
    187,654.31/258,962.87 = 101,613.27/x
  3. Step 3: Cross multiply
    187,654.31x = 258,962.87 × 101,613.27
  4. Step 4: Simplify right side
    187,654.31x = 26,314,064,029.28
  5. Step 5: Solve for x
    x = 26,314,064,029.28/187,654.31
  6. Step 6: Final answer
    x = 140,226.27

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1.5x scale

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.