Home / 129,834.50-179,171.66-70,218.50

Finding the Fourth Proportional to 129,834.50, 179,171.66 and 70,218.50

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Solution

The fourth proportional to 129,834.50, 179,171.66 and 70,218.50 is: 96,901.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,834.50 : 179,171.66 = 70,218.50 : x
  2. Step 2: Convert to fraction form
    129,834.50/179,171.66 = 70,218.50/x
  3. Step 3: Cross multiply
    129,834.50x = 179,171.66 × 70,218.50
  4. Step 4: Simplify right side
    129,834.50x = 12,581,165,207.71
  5. Step 5: Solve for x
    x = 12,581,165,207.71/129,834.50
  6. Step 6: Final answer
    x = 96,901.56

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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.