Home / 109,023.14-150,459.86-66,589.68

Finding the Fourth Proportional to 109,023.14, 150,459.86 and 66,589.68

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Solution

The fourth proportional to 109,023.14, 150,459.86 and 66,589.68 is: 91,898.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,023.14 : 150,459.86 = 66,589.68 : x
  2. Step 2: Convert to fraction form
    109,023.14/150,459.86 = 66,589.68/x
  3. Step 3: Cross multiply
    109,023.14x = 150,459.86 × 66,589.68
  4. Step 4: Simplify right side
    109,023.14x = 10,019,073,930.24
  5. Step 5: Solve for x
    x = 10,019,073,930.24/109,023.14
  6. Step 6: Final answer
    x = 91,898.60

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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.