Home / 123,027.08-169,777.36-66,438.45

Finding the Fourth Proportional to 123,027.08, 169,777.36 and 66,438.45

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Solution

The fourth proportional to 123,027.08, 169,777.36 and 66,438.45 is: 91,685.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,027.08 : 169,777.36 = 66,438.45 : x
  2. Step 2: Convert to fraction form
    123,027.08/169,777.36 = 66,438.45/x
  3. Step 3: Cross multiply
    123,027.08x = 169,777.36 × 66,438.45
  4. Step 4: Simplify right side
    123,027.08x = 11,279,743,960.70
  5. Step 5: Solve for x
    x = 11,279,743,960.70/123,027.08
  6. Step 6: Final answer
    x = 91,685.05

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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.