Home / 105,813.28-158,717.87-25,851.78

Finding the Fourth Proportional to 105,813.28, 158,717.87 and 25,851.78

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Solution

The fourth proportional to 105,813.28, 158,717.87 and 25,851.78 is: 38,777.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,813.28 : 158,717.87 = 25,851.78 : x
  2. Step 2: Convert to fraction form
    105,813.28/158,717.87 = 25,851.78/x
  3. Step 3: Cross multiply
    105,813.28x = 158,717.87 × 25,851.78
  4. Step 4: Simplify right side
    105,813.28x = 4,103,138,534.46
  5. Step 5: Solve for x
    x = 4,103,138,534.46/105,813.28
  6. Step 6: Final answer
    x = 38,777.16

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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.