Home / 129,026.47-193,321.31-79,002.11

Finding the Fourth Proportional to 129,026.47, 193,321.31 and 79,002.11

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Solution

The fourth proportional to 129,026.47, 193,321.31 and 79,002.11 is: 118,369.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,026.47 : 193,321.31 = 79,002.11 : x
  2. Step 2: Convert to fraction form
    129,026.47/193,321.31 = 79,002.11/x
  3. Step 3: Cross multiply
    129,026.47x = 193,321.31 × 79,002.11
  4. Step 4: Simplify right side
    129,026.47x = 15,272,791,164.73
  5. Step 5: Solve for x
    x = 15,272,791,164.73/129,026.47
  6. Step 6: Final answer
    x = 118,369.44

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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.