Home / 123,027.23-169,777.59-66,438.61

Finding the Fourth Proportional to 123,027.23, 169,777.59 and 66,438.61

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Solution

The fourth proportional to 123,027.23, 169,777.59 and 66,438.61 is: 91,685.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,027.23 : 169,777.59 = 66,438.61 : x
  2. Step 2: Convert to fraction form
    123,027.23/169,777.59 = 66,438.61/x
  3. Step 3: Cross multiply
    123,027.23x = 169,777.59 × 66,438.61
  4. Step 4: Simplify right side
    123,027.23x = 11,279,787,088.75
  5. Step 5: Solve for x
    x = 11,279,787,088.75/123,027.23
  6. Step 6: Final answer
    x = 91,685.29

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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.