Home / 112,938.80-169,423.82-38,080.36

Finding the Fourth Proportional to 112,938.80, 169,423.82 and 38,080.36

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Solution

The fourth proportional to 112,938.80, 169,423.82 and 38,080.36 is: 57,125.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,938.80 : 169,423.82 = 38,080.36 : x
  2. Step 2: Convert to fraction form
    112,938.80/169,423.82 = 38,080.36/x
  3. Step 3: Cross multiply
    112,938.80x = 169,423.82 × 38,080.36
  4. Step 4: Simplify right side
    112,938.80x = 6,451,719,020.65
  5. Step 5: Solve for x
    x = 6,451,719,020.65/112,938.80
  6. Step 6: Final answer
    x = 57,125.80

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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.