Home / 123,237.12-170,067.52-66,649.04

Finding the Fourth Proportional to 123,237.12, 170,067.52 and 66,649.04

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Solution

The fourth proportional to 123,237.12, 170,067.52 and 66,649.04 is: 91,975.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,237.12 : 170,067.52 = 66,649.04 : x
  2. Step 2: Convert to fraction form
    123,237.12/170,067.52 = 66,649.04/x
  3. Step 3: Cross multiply
    123,237.12x = 170,067.52 × 66,649.04
  4. Step 4: Simplify right side
    123,237.12x = 11,334,836,943.18
  5. Step 5: Solve for x
    x = 11,334,836,943.18/123,237.12
  6. Step 6: Final answer
    x = 91,975.83

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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.