Home / 111,605.43-154,016.62-60,618.65

Finding the Fourth Proportional to 111,605.43, 154,016.62 and 60,618.65

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Solution

The fourth proportional to 111,605.43, 154,016.62 and 60,618.65 is: 83,654.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,605.43 : 154,016.62 = 60,618.65 : x
  2. Step 2: Convert to fraction form
    111,605.43/154,016.62 = 60,618.65/x
  3. Step 3: Cross multiply
    111,605.43x = 154,016.62 × 60,618.65
  4. Step 4: Simplify right side
    111,605.43x = 9,336,279,581.96
  5. Step 5: Solve for x
    x = 9,336,279,581.96/111,605.43
  6. Step 6: Final answer
    x = 83,654.35

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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.