Home / 140,789.12-210,959.04-103,174.88

Finding the Fourth Proportional to 140,789.12, 210,959.04 and 103,174.88

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Solution

The fourth proportional to 140,789.12, 210,959.04 and 103,174.88 is: 154,597.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,789.12 : 210,959.04 = 103,174.88 : x
  2. Step 2: Convert to fraction form
    140,789.12/210,959.04 = 103,174.88/x
  3. Step 3: Cross multiply
    140,789.12x = 210,959.04 × 103,174.88
  4. Step 4: Simplify right side
    140,789.12x = 21,765,673,636.92
  5. Step 5: Solve for x
    x = 21,765,673,636.92/140,789.12
  6. Step 6: Final answer
    x = 154,597.70

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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.