Home / 105,422.16-158,195.61-38,908.62

Finding the Fourth Proportional to 105,422.16, 158,195.61 and 38,908.62

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Solution

The fourth proportional to 105,422.16, 158,195.61 and 38,908.62 is: 58,385.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,422.16 : 158,195.61 = 38,908.62 : x
  2. Step 2: Convert to fraction form
    105,422.16/158,195.61 = 38,908.62/x
  3. Step 3: Cross multiply
    105,422.16x = 158,195.61 × 38,908.62
  4. Step 4: Simplify right side
    105,422.16x = 6,155,172,875.16
  5. Step 5: Solve for x
    x = 6,155,172,875.16/105,422.16
  6. Step 6: Final answer
    x = 58,385.95

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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.