Home / 123,465.06-170,382.69-66,876.84

Finding the Fourth Proportional to 123,465.06, 170,382.69 and 66,876.84

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Solution

The fourth proportional to 123,465.06, 170,382.69 and 66,876.84 is: 92,290.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,465.06 : 170,382.69 = 66,876.84 : x
  2. Step 2: Convert to fraction form
    123,465.06/170,382.69 = 66,876.84/x
  3. Step 3: Cross multiply
    123,465.06x = 170,382.69 × 66,876.84
  4. Step 4: Simplify right side
    123,465.06x = 11,394,655,897.90
  5. Step 5: Solve for x
    x = 11,394,655,897.90/123,465.06
  6. Step 6: Final answer
    x = 92,290.53

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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.