Home / 109,023.80-150,454.20-66,002.72

Finding the Fourth Proportional to 109,023.80, 150,454.20 and 66,002.72

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Solution

The fourth proportional to 109,023.80, 150,454.20 and 66,002.72 is: 91,084.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,023.80 : 150,454.20 = 66,002.72 : x
  2. Step 2: Convert to fraction form
    109,023.80/150,454.20 = 66,002.72/x
  3. Step 3: Cross multiply
    109,023.80x = 150,454.20 × 66,002.72
  4. Step 4: Simplify right side
    109,023.80x = 9,930,386,435.42
  5. Step 5: Solve for x
    x = 9,930,386,435.42/109,023.80
  6. Step 6: Final answer
    x = 91,084.57

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1.5x scale

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.