Home / 145,046.29-200,160.71-80,511.73

Finding the Fourth Proportional to 145,046.29, 200,160.71 and 80,511.73

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Solution

The fourth proportional to 145,046.29, 200,160.71 and 80,511.73 is: 111,104.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,046.29 : 200,160.71 = 80,511.73 : x
  2. Step 2: Convert to fraction form
    145,046.29/200,160.71 = 80,511.73/x
  3. Step 3: Cross multiply
    145,046.29x = 200,160.71 × 80,511.73
  4. Step 4: Simplify right side
    145,046.29x = 16,115,284,637.57
  5. Step 5: Solve for x
    x = 16,115,284,637.57/145,046.29
  6. Step 6: Final answer
    x = 111,104.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.