Home / 121,443.44-182,077.08-81,902.48

Finding the Fourth Proportional to 121,443.44, 182,077.08 and 81,902.48

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Solution

The fourth proportional to 121,443.44, 182,077.08 and 81,902.48 is: 122,794.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,443.44 : 182,077.08 = 81,902.48 : x
  2. Step 2: Convert to fraction form
    121,443.44/182,077.08 = 81,902.48/x
  3. Step 3: Cross multiply
    121,443.44x = 182,077.08 × 81,902.48
  4. Step 4: Simplify right side
    121,443.44x = 14,912,564,403.16
  5. Step 5: Solve for x
    x = 14,912,564,403.16/121,443.44
  6. Step 6: Final answer
    x = 122,794.32

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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.