Home / 123,027.45-169,777.88-66,438.82

Finding the Fourth Proportional to 123,027.45, 169,777.88 and 66,438.82

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Solution

The fourth proportional to 123,027.45, 169,777.88 and 66,438.82 is: 91,685.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,027.45 : 169,777.88 = 66,438.82 : x
  2. Step 2: Convert to fraction form
    123,027.45/169,777.88 = 66,438.82/x
  3. Step 3: Cross multiply
    123,027.45x = 169,777.88 × 66,438.82
  4. Step 4: Simplify right side
    123,027.45x = 11,279,842,009.30
  5. Step 5: Solve for x
    x = 11,279,842,009.30/123,027.45
  6. Step 6: Final answer
    x = 91,685.57

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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.