Home / 109,443.80-151,023.18-61,704.86

Finding the Fourth Proportional to 109,443.80, 151,023.18 and 61,704.86

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Solution

The fourth proportional to 109,443.80, 151,023.18 and 61,704.86 is: 85,147.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,443.80 : 151,023.18 = 61,704.86 : x
  2. Step 2: Convert to fraction form
    109,443.80/151,023.18 = 61,704.86/x
  3. Step 3: Cross multiply
    109,443.80x = 151,023.18 × 61,704.86
  4. Step 4: Simplify right side
    109,443.80x = 9,318,864,178.65
  5. Step 5: Solve for x
    x = 9,318,864,178.65/109,443.80
  6. Step 6: Final answer
    x = 85,147.48

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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.