Home / 107,902.40-161,767.20-45,521.60

Finding the Fourth Proportional to 107,902.40, 161,767.20 and 45,521.60

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Solution

The fourth proportional to 107,902.40, 161,767.20 and 45,521.60 is: 68,245.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,902.40 : 161,767.20 = 45,521.60 : x
  2. Step 2: Convert to fraction form
    107,902.40/161,767.20 = 45,521.60/x
  3. Step 3: Cross multiply
    107,902.40x = 161,767.20 × 45,521.60
  4. Step 4: Simplify right side
    107,902.40x = 7,363,901,771.52
  5. Step 5: Solve for x
    x = 7,363,901,771.52/107,902.40
  6. Step 6: Final answer
    x = 68,245.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.