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Finding the Fourth Proportional to 149,373.80, 224,060.70 and 142,116.20

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Solution

The fourth proportional to 149,373.80, 224,060.70 and 142,116.20 is: 213,174.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,373.80 : 224,060.70 = 142,116.20 : x
  2. Step 2: Convert to fraction form
    149,373.80/224,060.70 = 142,116.20/x
  3. Step 3: Cross multiply
    149,373.80x = 224,060.70 × 142,116.20
  4. Step 4: Simplify right side
    149,373.80x = 31,842,655,253.34
  5. Step 5: Solve for x
    x = 31,842,655,253.34/149,373.80
  6. Step 6: Final answer
    x = 213,174.30

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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.