Home / 123,359.24-170,235.62-66,770.52

Finding the Fourth Proportional to 123,359.24, 170,235.62 and 66,770.52

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Solution

The fourth proportional to 123,359.24, 170,235.62 and 66,770.52 is: 92,143.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,359.24 : 170,235.62 = 66,770.52 : x
  2. Step 2: Convert to fraction form
    123,359.24/170,235.62 = 66,770.52/x
  3. Step 3: Cross multiply
    123,359.24x = 170,235.62 × 66,770.52
  4. Step 4: Simplify right side
    123,359.24x = 11,366,720,869.92
  5. Step 5: Solve for x
    x = 11,366,720,869.92/123,359.24
  6. Step 6: Final answer
    x = 92,143.25

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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.