Home / 145,371.28-200,618.04-81,708.88

Finding the Fourth Proportional to 145,371.28, 200,618.04 and 81,708.88

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Solution

The fourth proportional to 145,371.28, 200,618.04 and 81,708.88 is: 112,761.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,371.28 : 200,618.04 = 81,708.88 : x
  2. Step 2: Convert to fraction form
    145,371.28/200,618.04 = 81,708.88/x
  3. Step 3: Cross multiply
    145,371.28x = 200,618.04 × 81,708.88
  4. Step 4: Simplify right side
    145,371.28x = 16,392,275,356.20
  5. Step 5: Solve for x
    x = 16,392,275,356.20/145,371.28
  6. Step 6: Final answer
    x = 112,761.44

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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.