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Finding the Fourth Proportional to 162,345.60, 223,891.86 and 101,921.88

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Solution

The fourth proportional to 162,345.60, 223,891.86 and 101,921.88 is: 140,561.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,345.60 : 223,891.86 = 101,921.88 : x
  2. Step 2: Convert to fraction form
    162,345.60/223,891.86 = 101,921.88/x
  3. Step 3: Cross multiply
    162,345.60x = 223,891.86 × 101,921.88
  4. Step 4: Simplify right side
    162,345.60x = 22,819,479,287.90
  5. Step 5: Solve for x
    x = 22,819,479,287.90/162,345.60
  6. Step 6: Final answer
    x = 140,561.12

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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.