Home / 105,816.20-158,724.30-82,460.12

Finding the Fourth Proportional to 105,816.20, 158,724.30 and 82,460.12

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Solution

The fourth proportional to 105,816.20, 158,724.30 and 82,460.12 is: 123,690.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,816.20 : 158,724.30 = 82,460.12 : x
  2. Step 2: Convert to fraction form
    105,816.20/158,724.30 = 82,460.12/x
  3. Step 3: Cross multiply
    105,816.20x = 158,724.30 × 82,460.12
  4. Step 4: Simplify right side
    105,816.20x = 13,088,424,824.92
  5. Step 5: Solve for x
    x = 13,088,424,824.92/105,816.20
  6. Step 6: Final answer
    x = 123,690.18

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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.