Home / 129,818.84-179,150.13-71,675.69

Finding the Fourth Proportional to 129,818.84, 179,150.13 and 71,675.69

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Solution

The fourth proportional to 129,818.84, 179,150.13 and 71,675.69 is: 98,912.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,818.84 : 179,150.13 = 71,675.69 : x
  2. Step 2: Convert to fraction form
    129,818.84/179,150.13 = 71,675.69/x
  3. Step 3: Cross multiply
    129,818.84x = 179,150.13 × 71,675.69
  4. Step 4: Simplify right side
    129,818.84x = 12,840,708,285.59
  5. Step 5: Solve for x
    x = 12,840,708,285.59/129,818.84
  6. Step 6: Final answer
    x = 98,912.52

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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.