Home / 123,244.09-170,076.85-66,655.47

Finding the Fourth Proportional to 123,244.09, 170,076.85 and 66,655.47

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Solution

The fourth proportional to 123,244.09, 170,076.85 and 66,655.47 is: 91,984.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,244.09 : 170,076.85 = 66,655.47 : x
  2. Step 2: Convert to fraction form
    123,244.09/170,076.85 = 66,655.47/x
  3. Step 3: Cross multiply
    123,244.09x = 170,076.85 × 66,655.47
  4. Step 4: Simplify right side
    123,244.09x = 11,336,552,372.87
  5. Step 5: Solve for x
    x = 11,336,552,372.87/123,244.09
  6. Step 6: Final answer
    x = 91,984.55

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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.