Home / 129,452.98-178,700.17-87,036.10

Finding the Fourth Proportional to 129,452.98, 178,700.17 and 87,036.10

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Solution

The fourth proportional to 129,452.98, 178,700.17 and 87,036.10 is: 120,146.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,452.98 : 178,700.17 = 87,036.10 : x
  2. Step 2: Convert to fraction form
    129,452.98/178,700.17 = 87,036.10/x
  3. Step 3: Cross multiply
    129,452.98x = 178,700.17 × 87,036.10
  4. Step 4: Simplify right side
    129,452.98x = 15,553,365,866.14
  5. Step 5: Solve for x
    x = 15,553,365,866.14/129,452.98
  6. Step 6: Final answer
    x = 120,146.84

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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.