Home / 129,988.46-179,360.61-75,543.08

Finding the Fourth Proportional to 129,988.46, 179,360.61 and 75,543.08

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Solution

The fourth proportional to 129,988.46, 179,360.61 and 75,543.08 is: 104,235.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,988.46 : 179,360.61 = 75,543.08 : x
  2. Step 2: Convert to fraction form
    129,988.46/179,360.61 = 75,543.08/x
  3. Step 3: Cross multiply
    129,988.46x = 179,360.61 × 75,543.08
  4. Step 4: Simplify right side
    129,988.46x = 13,549,452,910.08
  5. Step 5: Solve for x
    x = 13,549,452,910.08/129,988.46
  6. Step 6: Final answer
    x = 104,235.81

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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.