Home / 140,670.20-194,166.50-100,320.04

Finding the Fourth Proportional to 140,670.20, 194,166.50 and 100,320.04

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Solution

The fourth proportional to 140,670.20, 194,166.50 and 100,320.04 is: 138,471.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,670.20 : 194,166.50 = 100,320.04 : x
  2. Step 2: Convert to fraction form
    140,670.20/194,166.50 = 100,320.04/x
  3. Step 3: Cross multiply
    140,670.20x = 194,166.50 × 100,320.04
  4. Step 4: Simplify right side
    140,670.20x = 19,478,791,046.66
  5. Step 5: Solve for x
    x = 19,478,791,046.66/140,670.20
  6. Step 6: Final answer
    x = 138,471.34

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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.