Home / 123,060.82-169,823.93-66,472.20

Finding the Fourth Proportional to 123,060.82, 169,823.93 and 66,472.20

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Solution

The fourth proportional to 123,060.82, 169,823.93 and 66,472.20 is: 91,731.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,060.82 : 169,823.93 = 66,472.20 : x
  2. Step 2: Convert to fraction form
    123,060.82/169,823.93 = 66,472.20/x
  3. Step 3: Cross multiply
    123,060.82x = 169,823.93 × 66,472.20
  4. Step 4: Simplify right side
    123,060.82x = 11,288,570,239.75
  5. Step 5: Solve for x
    x = 11,288,570,239.75/123,060.82
  6. Step 6: Final answer
    x = 91,731.64

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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.