Home / 123,026.82-169,777.02-66,438.20

Finding the Fourth Proportional to 123,026.82, 169,777.02 and 66,438.20

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Solution

The fourth proportional to 123,026.82, 169,777.02 and 66,438.20 is: 91,684.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,026.82 : 169,777.02 = 66,438.20 : x
  2. Step 2: Convert to fraction form
    123,026.82/169,777.02 = 66,438.20/x
  3. Step 3: Cross multiply
    123,026.82x = 169,777.02 × 66,438.20
  4. Step 4: Simplify right side
    123,026.82x = 11,279,679,610.16
  5. Step 5: Solve for x
    x = 11,279,679,610.16/123,026.82
  6. Step 6: Final answer
    x = 91,684.72

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1.5x scale

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.