Home / 185,781.28-256,393.97-105,223.13

Finding the Fourth Proportional to 185,781.28, 256,393.97 and 105,223.13

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Solution

The fourth proportional to 185,781.28, 256,393.97 and 105,223.13 is: 145,216.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,781.28 : 256,393.97 = 105,223.13 : x
  2. Step 2: Convert to fraction form
    185,781.28/256,393.97 = 105,223.13/x
  3. Step 3: Cross multiply
    185,781.28x = 256,393.97 × 105,223.13
  4. Step 4: Simplify right side
    185,781.28x = 26,978,576,036.53
  5. Step 5: Solve for x
    x = 26,978,576,036.53/185,781.28
  6. Step 6: Final answer
    x = 145,216.87

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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.