Home / 205,891.47-284,135.04-115,245.18

Finding the Fourth Proportional to 205,891.47, 284,135.04 and 115,245.18

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Solution

The fourth proportional to 205,891.47, 284,135.04 and 115,245.18 is: 159,041.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,891.47 : 284,135.04 = 115,245.18 : x
  2. Step 2: Convert to fraction form
    205,891.47/284,135.04 = 115,245.18/x
  3. Step 3: Cross multiply
    205,891.47x = 284,135.04 × 115,245.18
  4. Step 4: Simplify right side
    205,891.47x = 32,745,193,829.11
  5. Step 5: Solve for x
    x = 32,745,193,829.11/205,891.47
  6. Step 6: Final answer
    x = 159,041.04

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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.