Home / 129,342.11-178,339.43-88,525.92

Finding the Fourth Proportional to 129,342.11, 178,339.43 and 88,525.92

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Solution

The fourth proportional to 129,342.11, 178,339.43 and 88,525.92 is: 122,061.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,342.11 : 178,339.43 = 88,525.92 : x
  2. Step 2: Convert to fraction form
    129,342.11/178,339.43 = 88,525.92/x
  3. Step 3: Cross multiply
    129,342.11x = 178,339.43 × 88,525.92
  4. Step 4: Simplify right side
    129,342.11x = 15,787,662,113.03
  5. Step 5: Solve for x
    x = 15,787,662,113.03/129,342.11
  6. Step 6: Final answer
    x = 122,061.27

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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.