Home / 109,458.30-151,050.45-61,711.71

Finding the Fourth Proportional to 109,458.30, 151,050.45 and 61,711.71

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Solution

The fourth proportional to 109,458.30, 151,050.45 and 61,711.71 is: 85,161.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,458.30 : 151,050.45 = 61,711.71 : x
  2. Step 2: Convert to fraction form
    109,458.30/151,050.45 = 61,711.71/x
  3. Step 3: Cross multiply
    109,458.30x = 151,050.45 × 61,711.71
  4. Step 4: Simplify right side
    109,458.30x = 9,321,581,230.75
  5. Step 5: Solve for x
    x = 9,321,581,230.75/109,458.30
  6. Step 6: Final answer
    x = 85,161.02

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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.