Home / 129,934.75-179,309.96-70,318.75

Finding the Fourth Proportional to 129,934.75, 179,309.96 and 70,318.75

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Solution

The fourth proportional to 129,934.75, 179,309.96 and 70,318.75 is: 97,039.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,934.75 : 179,309.96 = 70,318.75 : x
  2. Step 2: Convert to fraction form
    129,934.75/179,309.96 = 70,318.75/x
  3. Step 3: Cross multiply
    129,934.75x = 179,309.96 × 70,318.75
  4. Step 4: Simplify right side
    129,934.75x = 12,608,851,898.16
  5. Step 5: Solve for x
    x = 12,608,851,898.16/129,934.75
  6. Step 6: Final answer
    x = 97,039.88

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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.