Home / 105,616.20-158,132.70-82,288.20

Finding the Fourth Proportional to 105,616.20, 158,132.70 and 82,288.20

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Solution

The fourth proportional to 105,616.20, 158,132.70 and 82,288.20 is: 123,205.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,616.20 : 158,132.70 = 82,288.20 : x
  2. Step 2: Convert to fraction form
    105,616.20/158,132.70 = 82,288.20/x
  3. Step 3: Cross multiply
    105,616.20x = 158,132.70 × 82,288.20
  4. Step 4: Simplify right side
    105,616.20x = 13,012,455,244.14
  5. Step 5: Solve for x
    x = 13,012,455,244.14/105,616.20
  6. Step 6: Final answer
    x = 123,205.11

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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.