Home / 123,244.89-170,077.92-66,656.25

Finding the Fourth Proportional to 123,244.89, 170,077.92 and 66,656.25

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Solution

The fourth proportional to 123,244.89, 170,077.92 and 66,656.25 is: 91,985.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,244.89 : 170,077.92 = 66,656.25 : x
  2. Step 2: Convert to fraction form
    123,244.89/170,077.92 = 66,656.25/x
  3. Step 3: Cross multiply
    123,244.89x = 170,077.92 × 66,656.25
  4. Step 4: Simplify right side
    123,244.89x = 11,336,756,355
  5. Step 5: Solve for x
    x = 11,336,756,355/123,244.89
  6. Step 6: Final answer
    x = 91,985.61

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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.