Home / 129,955.26-179,329.76-75,502.61

Finding the Fourth Proportional to 129,955.26, 179,329.76 and 75,502.61

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Solution

The fourth proportional to 129,955.26, 179,329.76 and 75,502.61 is: 104,188.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,955.26 : 179,329.76 = 75,502.61 : x
  2. Step 2: Convert to fraction form
    129,955.26/179,329.76 = 75,502.61/x
  3. Step 3: Cross multiply
    129,955.26x = 179,329.76 × 75,502.61
  4. Step 4: Simplify right side
    129,955.26x = 13,539,865,036.84
  5. Step 5: Solve for x
    x = 13,539,865,036.84/129,955.26
  6. Step 6: Final answer
    x = 104,188.66

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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.