Home / 105,305.20-157,934.48-30,409.04

Finding the Fourth Proportional to 105,305.20, 157,934.48 and 30,409.04

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Solution

The fourth proportional to 105,305.20, 157,934.48 and 30,409.04 is: 45,606.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,305.20 : 157,934.48 = 30,409.04 : x
  2. Step 2: Convert to fraction form
    105,305.20/157,934.48 = 30,409.04/x
  3. Step 3: Cross multiply
    105,305.20x = 157,934.48 × 30,409.04
  4. Step 4: Simplify right side
    105,305.20x = 4,802,635,919.70
  5. Step 5: Solve for x
    x = 4,802,635,919.70/105,305.20
  6. Step 6: Final answer
    x = 45,606.83

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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.