Home / 109,613.17-151,278.94-91,183.72

Finding the Fourth Proportional to 109,613.17, 151,278.94 and 91,183.72

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Solution

The fourth proportional to 109,613.17, 151,278.94 and 91,183.72 is: 125,844.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,613.17 : 151,278.94 = 91,183.72 : x
  2. Step 2: Convert to fraction form
    109,613.17/151,278.94 = 91,183.72/x
  3. Step 3: Cross multiply
    109,613.17x = 151,278.94 × 91,183.72
  4. Step 4: Simplify right side
    109,613.17x = 13,794,176,013.38
  5. Step 5: Solve for x
    x = 13,794,176,013.38/109,613.17
  6. Step 6: Final answer
    x = 125,844.15

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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.