Home / 121,549.20-182,405.32-42,663.64

Finding the Fourth Proportional to 121,549.20, 182,405.32 and 42,663.64

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Solution

The fourth proportional to 121,549.20, 182,405.32 and 42,663.64 is: 64,024.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,549.20 : 182,405.32 = 42,663.64 : x
  2. Step 2: Convert to fraction form
    121,549.20/182,405.32 = 42,663.64/x
  3. Step 3: Cross multiply
    121,549.20x = 182,405.32 × 42,663.64
  4. Step 4: Simplify right side
    121,549.20x = 7,782,074,906.56
  5. Step 5: Solve for x
    x = 7,782,074,906.56/121,549.20
  6. Step 6: Final answer
    x = 64,024.07

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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.