Home / 121,902.48-182,908.08-77,517.60

Finding the Fourth Proportional to 121,902.48, 182,908.08 and 77,517.60

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Solution

The fourth proportional to 121,902.48, 182,908.08 and 77,517.60 is: 116,310.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,902.48 : 182,908.08 = 77,517.60 : x
  2. Step 2: Convert to fraction form
    121,902.48/182,908.08 = 77,517.60/x
  3. Step 3: Cross multiply
    121,902.48x = 182,908.08 × 77,517.60
  4. Step 4: Simplify right side
    121,902.48x = 14,178,595,382.21
  5. Step 5: Solve for x
    x = 14,178,595,382.21/121,902.48
  6. Step 6: Final answer
    x = 116,310.97

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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.