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Finding the Fourth Proportional to 178,158.78, 245,798.07 and 101,622.90

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Solution

The fourth proportional to 178,158.78, 245,798.07 and 101,622.90 is: 140,204.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,158.78 : 245,798.07 = 101,622.90 : x
  2. Step 2: Convert to fraction form
    178,158.78/245,798.07 = 101,622.90/x
  3. Step 3: Cross multiply
    178,158.78x = 245,798.07 × 101,622.90
  4. Step 4: Simplify right side
    178,158.78x = 24,978,712,687.80
  5. Step 5: Solve for x
    x = 24,978,712,687.80/178,158.78
  6. Step 6: Final answer
    x = 140,204.78

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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.