Home / 105,813.20-158,711.52-30,934.04

Finding the Fourth Proportional to 105,813.20, 158,711.52 and 30,934.04

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Solution

The fourth proportional to 105,813.20, 158,711.52 and 30,934.04 is: 46,398.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,813.20 : 158,711.52 = 30,934.04 : x
  2. Step 2: Convert to fraction form
    105,813.20/158,711.52 = 30,934.04/x
  3. Step 3: Cross multiply
    105,813.20x = 158,711.52 × 30,934.04
  4. Step 4: Simplify right side
    105,813.20x = 4,909,588,508.14
  5. Step 5: Solve for x
    x = 4,909,588,508.14/105,813.20
  6. Step 6: Final answer
    x = 46,398.64

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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.