Home / 117,531.24-162,191.45-66,542.65

Finding the Fourth Proportional to 117,531.24, 162,191.45 and 66,542.65

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Solution

The fourth proportional to 117,531.24, 162,191.45 and 66,542.65 is: 91,827.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,531.24 : 162,191.45 = 66,542.65 : x
  2. Step 2: Convert to fraction form
    117,531.24/162,191.45 = 66,542.65/x
  3. Step 3: Cross multiply
    117,531.24x = 162,191.45 × 66,542.65
  4. Step 4: Simplify right side
    117,531.24x = 10,792,648,276.92
  5. Step 5: Solve for x
    x = 10,792,648,276.92/117,531.24
  6. Step 6: Final answer
    x = 91,827.91

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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.