Home / 118,680.38-178,000.42-52,102.63

Finding the Fourth Proportional to 118,680.38, 178,000.42 and 52,102.63

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Solution

The fourth proportional to 118,680.38, 178,000.42 and 52,102.63 is: 78,145.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,680.38 : 178,000.42 = 52,102.63 : x
  2. Step 2: Convert to fraction form
    118,680.38/178,000.42 = 52,102.63/x
  3. Step 3: Cross multiply
    118,680.38x = 178,000.42 × 52,102.63
  4. Step 4: Simplify right side
    118,680.38x = 9,274,290,023.10
  5. Step 5: Solve for x
    x = 9,274,290,023.10/118,680.38
  6. Step 6: Final answer
    x = 78,145.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.