Home / 123,549.52-170,499.18-66,961.84

Finding the Fourth Proportional to 123,549.52, 170,499.18 and 66,961.84

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Solution

The fourth proportional to 123,549.52, 170,499.18 and 66,961.84 is: 92,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,549.52 : 170,499.18 = 66,961.84 : x
  2. Step 2: Convert to fraction form
    123,549.52/170,499.18 = 66,961.84/x
  3. Step 3: Cross multiply
    123,549.52x = 170,499.18 × 66,961.84
  4. Step 4: Simplify right side
    123,549.52x = 11,416,938,811.29
  5. Step 5: Solve for x
    x = 11,416,938,811.29/123,549.52
  6. Step 6: Final answer
    x = 92,407.80

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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.