Home / 129,449.27-178,597.17-75,696.21

Finding the Fourth Proportional to 129,449.27, 178,597.17 and 75,696.21

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Solution

The fourth proportional to 129,449.27, 178,597.17 and 75,696.21 is: 104,435.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,449.27 : 178,597.17 = 75,696.21 : x
  2. Step 2: Convert to fraction form
    129,449.27/178,597.17 = 75,696.21/x
  3. Step 3: Cross multiply
    129,449.27x = 178,597.17 × 75,696.21
  4. Step 4: Simplify right side
    129,449.27x = 13,519,128,885.73
  5. Step 5: Solve for x
    x = 13,519,128,885.73/129,449.27
  6. Step 6: Final answer
    x = 104,435.73

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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.