Home / 129,185.57-178,324.80-75,488.04

Finding the Fourth Proportional to 129,185.57, 178,324.80 and 75,488.04

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Solution

The fourth proportional to 129,185.57, 178,324.80 and 75,488.04 is: 104,201.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,185.57 : 178,324.80 = 75,488.04 : x
  2. Step 2: Convert to fraction form
    129,185.57/178,324.80 = 75,488.04/x
  3. Step 3: Cross multiply
    129,185.57x = 178,324.80 × 75,488.04
  4. Step 4: Simplify right side
    129,185.57x = 13,461,389,635.39
  5. Step 5: Solve for x
    x = 13,461,389,635.39/129,185.57
  6. Step 6: Final answer
    x = 104,201.96

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1.5x scale

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.