Home / 109,545.21-151,171.97-61,798.55

Finding the Fourth Proportional to 109,545.21, 151,171.97 and 61,798.55

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Solution

The fourth proportional to 109,545.21, 151,171.97 and 61,798.55 is: 85,281.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,545.21 : 151,171.97 = 61,798.55 : x
  2. Step 2: Convert to fraction form
    109,545.21/151,171.97 = 61,798.55/x
  3. Step 3: Cross multiply
    109,545.21x = 151,171.97 × 61,798.55
  4. Step 4: Simplify right side
    109,545.21x = 9,342,207,481.79
  5. Step 5: Solve for x
    x = 9,342,207,481.79/109,545.21
  6. Step 6: Final answer
    x = 85,281.75

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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.