Home / 209,036.28-288,468.81-113,542.14

Finding the Fourth Proportional to 209,036.28, 288,468.81 and 113,542.14

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Solution

The fourth proportional to 209,036.28, 288,468.81 and 113,542.14 is: 156,687.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,036.28 : 288,468.81 = 113,542.14 : x
  2. Step 2: Convert to fraction form
    209,036.28/288,468.81 = 113,542.14/x
  3. Step 3: Cross multiply
    209,036.28x = 288,468.81 × 113,542.14
  4. Step 4: Simplify right side
    209,036.28x = 32,753,366,010.65
  5. Step 5: Solve for x
    x = 32,753,366,010.65/209,036.28
  6. Step 6: Final answer
    x = 156,687.47

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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.