Home / 129,310.54-178,347.35-88,498.86

Finding the Fourth Proportional to 129,310.54, 178,347.35 and 88,498.86

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Solution

The fourth proportional to 129,310.54, 178,347.35 and 88,498.86 is: 122,059.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,310.54 : 178,347.35 = 88,498.86 : x
  2. Step 2: Convert to fraction form
    129,310.54/178,347.35 = 88,498.86/x
  3. Step 3: Cross multiply
    129,310.54x = 178,347.35 × 88,498.86
  4. Step 4: Simplify right side
    129,310.54x = 15,783,537,159.02
  5. Step 5: Solve for x
    x = 15,783,537,159.02/129,310.54
  6. Step 6: Final answer
    x = 122,059.17

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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.