Home / 129,023.20-193,502.40-45,897.76

Finding the Fourth Proportional to 129,023.20, 193,502.40 and 45,897.76

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Solution

The fourth proportional to 129,023.20, 193,502.40 and 45,897.76 is: 68,835.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,023.20 : 193,502.40 = 45,897.76 : x
  2. Step 2: Convert to fraction form
    129,023.20/193,502.40 = 45,897.76/x
  3. Step 3: Cross multiply
    129,023.20x = 193,502.40 × 45,897.76
  4. Step 4: Simplify right side
    129,023.20x = 8,881,326,714.62
  5. Step 5: Solve for x
    x = 8,881,326,714.62/129,023.20
  6. Step 6: Final answer
    x = 68,835.11

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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.