Home / 129,262.74-193,981.64-45,023.65

Finding the Fourth Proportional to 129,262.74, 193,981.64 and 45,023.65

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Solution

The fourth proportional to 129,262.74, 193,981.64 and 45,023.65 is: 67,565.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,262.74 : 193,981.64 = 45,023.65 : x
  2. Step 2: Convert to fraction form
    129,262.74/193,981.64 = 45,023.65/x
  3. Step 3: Cross multiply
    129,262.74x = 193,981.64 × 45,023.65
  4. Step 4: Simplify right side
    129,262.74x = 8,733,760,755.71
  5. Step 5: Solve for x
    x = 8,733,760,755.71/129,262.74
  6. Step 6: Final answer
    x = 67,565.96

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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.