Home / 107,728.18-161,599.65-36,621.88

Finding the Fourth Proportional to 107,728.18, 161,599.65 and 36,621.88

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Solution

The fourth proportional to 107,728.18, 161,599.65 and 36,621.88 is: 54,935.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,728.18 : 161,599.65 = 36,621.88 : x
  2. Step 2: Convert to fraction form
    107,728.18/161,599.65 = 36,621.88/x
  3. Step 3: Cross multiply
    107,728.18x = 161,599.65 × 36,621.88
  4. Step 4: Simplify right side
    107,728.18x = 5,918,082,990.34
  5. Step 5: Solve for x
    x = 5,918,082,990.34/107,728.18
  6. Step 6: Final answer
    x = 54,935.33

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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.