Home / 129,135.68-193,722-62,521.12

Finding the Fourth Proportional to 129,135.68, 193,722 and 62,521.12

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Solution

The fourth proportional to 129,135.68, 193,722 and 62,521.12 is: 93,790.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,135.68 : 193,722 = 62,521.12 : x
  2. Step 2: Convert to fraction form
    129,135.68/193,722 = 62,521.12/x
  3. Step 3: Cross multiply
    129,135.68x = 193,722 × 62,521.12
  4. Step 4: Simplify right side
    129,135.68x = 12,111,716,408.64
  5. Step 5: Solve for x
    x = 12,111,716,408.64/129,135.68
  6. Step 6: Final answer
    x = 93,790.63

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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.