Home / 123,026.94-169,777.18-66,438.32

Finding the Fourth Proportional to 123,026.94, 169,777.18 and 66,438.32

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Solution

The fourth proportional to 123,026.94, 169,777.18 and 66,438.32 is: 91,684.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,026.94 : 169,777.18 = 66,438.32 : x
  2. Step 2: Convert to fraction form
    123,026.94/169,777.18 = 66,438.32/x
  3. Step 3: Cross multiply
    123,026.94x = 169,777.18 × 66,438.32
  4. Step 4: Simplify right side
    123,026.94x = 11,279,710,613.54
  5. Step 5: Solve for x
    x = 11,279,710,613.54/123,026.94
  6. Step 6: Final answer
    x = 91,684.88

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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.