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Finding the Fourth Proportional to 105,380.91, 158,133.60 and 38,867.49

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Solution

The fourth proportional to 105,380.91, 158,133.60 and 38,867.49 is: 58,324.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,380.91 : 158,133.60 = 38,867.49 : x
  2. Step 2: Convert to fraction form
    105,380.91/158,133.60 = 38,867.49/x
  3. Step 3: Cross multiply
    105,380.91x = 158,133.60 × 38,867.49
  4. Step 4: Simplify right side
    105,380.91x = 6,146,256,116.66
  5. Step 5: Solve for x
    x = 6,146,256,116.66/105,380.91
  6. Step 6: Final answer
    x = 58,324.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.