Home / 123,436.20-170,339.94-66,847.08

Finding the Fourth Proportional to 123,436.20, 170,339.94 and 66,847.08

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Solution

The fourth proportional to 123,436.20, 170,339.94 and 66,847.08 is: 92,247.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,436.20 : 170,339.94 = 66,847.08 : x
  2. Step 2: Convert to fraction form
    123,436.20/170,339.94 = 66,847.08/x
  3. Step 3: Cross multiply
    123,436.20x = 170,339.94 × 66,847.08
  4. Step 4: Simplify right side
    123,436.20x = 11,386,727,596.38
  5. Step 5: Solve for x
    x = 11,386,727,596.38/123,436.20
  6. Step 6: Final answer
    x = 92,247.88

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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.