Home / 145,044.20-200,160.42-81,382.22

Finding the Fourth Proportional to 145,044.20, 200,160.42 and 81,382.22

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Solution

The fourth proportional to 145,044.20, 200,160.42 and 81,382.22 is: 112,307.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,044.20 : 200,160.42 = 81,382.22 : x
  2. Step 2: Convert to fraction form
    145,044.20/200,160.42 = 81,382.22/x
  3. Step 3: Cross multiply
    145,044.20x = 200,160.42 × 81,382.22
  4. Step 4: Simplify right side
    145,044.20x = 16,289,499,335.73
  5. Step 5: Solve for x
    x = 16,289,499,335.73/145,044.20
  6. Step 6: Final answer
    x = 112,307.14

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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.