Home / 115,306.40-172,646.94-59,785.76

Finding the Fourth Proportional to 115,306.40, 172,646.94 and 59,785.76

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Solution

The fourth proportional to 115,306.40, 172,646.94 and 59,785.76 is: 89,516.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,306.40 : 172,646.94 = 59,785.76 : x
  2. Step 2: Convert to fraction form
    115,306.40/172,646.94 = 59,785.76/x
  3. Step 3: Cross multiply
    115,306.40x = 172,646.94 × 59,785.76
  4. Step 4: Simplify right side
    115,306.40x = 10,321,828,519.57
  5. Step 5: Solve for x
    x = 10,321,828,519.57/115,306.40
  6. Step 6: Final answer
    x = 89,516.53

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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.