Home / 129,767.40-179,045.12-76,023.53

Finding the Fourth Proportional to 129,767.40, 179,045.12 and 76,023.53

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Solution

The fourth proportional to 129,767.40, 179,045.12 and 76,023.53 is: 104,892.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,767.40 : 179,045.12 = 76,023.53 : x
  2. Step 2: Convert to fraction form
    129,767.40/179,045.12 = 76,023.53/x
  3. Step 3: Cross multiply
    129,767.40x = 179,045.12 × 76,023.53
  4. Step 4: Simplify right side
    129,767.40x = 13,611,640,776.33
  5. Step 5: Solve for x
    x = 13,611,640,776.33/129,767.40
  6. Step 6: Final answer
    x = 104,892.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.