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Finding the Fourth Proportional to 148,978.40, 223,273.20 and 60,159.20

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Solution

The fourth proportional to 148,978.40, 223,273.20 and 60,159.20 is: 90,160.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,978.40 : 223,273.20 = 60,159.20 : x
  2. Step 2: Convert to fraction form
    148,978.40/223,273.20 = 60,159.20/x
  3. Step 3: Cross multiply
    148,978.40x = 223,273.20 × 60,159.20
  4. Step 4: Simplify right side
    148,978.40x = 13,431,937,093.44
  5. Step 5: Solve for x
    x = 13,431,937,093.44/148,978.40
  6. Step 6: Final answer
    x = 90,160.30

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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.