Home / 121,414.89-182,122.35-65,281.44

Finding the Fourth Proportional to 121,414.89, 182,122.35 and 65,281.44

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Solution

The fourth proportional to 121,414.89, 182,122.35 and 65,281.44 is: 97,922.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,414.89 : 182,122.35 = 65,281.44 : x
  2. Step 2: Convert to fraction form
    121,414.89/182,122.35 = 65,281.44/x
  3. Step 3: Cross multiply
    121,414.89x = 182,122.35 × 65,281.44
  4. Step 4: Simplify right side
    121,414.89x = 11,889,208,937.78
  5. Step 5: Solve for x
    x = 11,889,208,937.78/121,414.89
  6. Step 6: Final answer
    x = 97,922.17

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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.