Home / 123,585.06-170,382.45-98,175.77

Finding the Fourth Proportional to 123,585.06, 170,382.45 and 98,175.77

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Solution

The fourth proportional to 123,585.06, 170,382.45 and 98,175.77 is: 135,351.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,585.06 : 170,382.45 = 98,175.77 : x
  2. Step 2: Convert to fraction form
    123,585.06/170,382.45 = 98,175.77/x
  3. Step 3: Cross multiply
    123,585.06x = 170,382.45 × 98,175.77
  4. Step 4: Simplify right side
    123,585.06x = 16,727,428,223.24
  5. Step 5: Solve for x
    x = 16,727,428,223.24/123,585.06
  6. Step 6: Final answer
    x = 135,351.54

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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.