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Finding the Fourth Proportional to 103,681.01, 155,514.21 and 40,489.26

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Solution

The fourth proportional to 103,681.01, 155,514.21 and 40,489.26 is: 60,731.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,681.01 : 155,514.21 = 40,489.26 : x
  2. Step 2: Convert to fraction form
    103,681.01/155,514.21 = 40,489.26/x
  3. Step 3: Cross multiply
    103,681.01x = 155,514.21 × 40,489.26
  4. Step 4: Simplify right side
    103,681.01x = 6,296,655,282.38
  5. Step 5: Solve for x
    x = 6,296,655,282.38/103,681.01
  6. Step 6: Final answer
    x = 60,731.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.