Home / 123,177.18-169,984.60-66,588.54

Finding the Fourth Proportional to 123,177.18, 169,984.60 and 66,588.54

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Solution

The fourth proportional to 123,177.18, 169,984.60 and 66,588.54 is: 91,892.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,177.18 : 169,984.60 = 66,588.54 : x
  2. Step 2: Convert to fraction form
    123,177.18/169,984.60 = 66,588.54/x
  3. Step 3: Cross multiply
    123,177.18x = 169,984.60 × 66,588.54
  4. Step 4: Simplify right side
    123,177.18x = 11,319,026,336.48
  5. Step 5: Solve for x
    x = 11,319,026,336.48/123,177.18
  6. Step 6: Final answer
    x = 91,892.23

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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.