Home / 172,217.76-258,329.20-113,429.92

Finding the Fourth Proportional to 172,217.76, 258,329.20 and 113,429.92

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Solution

The fourth proportional to 172,217.76, 258,329.20 and 113,429.92 is: 170,146.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,217.76 : 258,329.20 = 113,429.92 : x
  2. Step 2: Convert to fraction form
    172,217.76/258,329.20 = 113,429.92/x
  3. Step 3: Cross multiply
    172,217.76x = 258,329.20 × 113,429.92
  4. Step 4: Simplify right side
    172,217.76x = 29,302,260,489.66
  5. Step 5: Solve for x
    x = 29,302,260,489.66/172,217.76
  6. Step 6: Final answer
    x = 170,146.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.