Home / 185,522.74-256,019.61-100,640.14

Finding the Fourth Proportional to 185,522.74, 256,019.61 and 100,640.14

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Solution

The fourth proportional to 185,522.74, 256,019.61 and 100,640.14 is: 138,882.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,522.74 : 256,019.61 = 100,640.14 : x
  2. Step 2: Convert to fraction form
    185,522.74/256,019.61 = 100,640.14/x
  3. Step 3: Cross multiply
    185,522.74x = 256,019.61 × 100,640.14
  4. Step 4: Simplify right side
    185,522.74x = 25,765,849,393.15
  5. Step 5: Solve for x
    x = 25,765,849,393.15/185,522.74
  6. Step 6: Final answer
    x = 138,882.43

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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.