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Finding the Fourth Proportional to 163,471.04, 225,610.88 and 99,795.20

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Solution

The fourth proportional to 163,471.04, 225,610.88 and 99,795.20 is: 137,730.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,471.04 : 225,610.88 = 99,795.20 : x
  2. Step 2: Convert to fraction form
    163,471.04/225,610.88 = 99,795.20/x
  3. Step 3: Cross multiply
    163,471.04x = 225,610.88 × 99,795.20
  4. Step 4: Simplify right side
    163,471.04x = 22,514,882,891.78
  5. Step 5: Solve for x
    x = 22,514,882,891.78/163,471.04
  6. Step 6: Final answer
    x = 137,730.10

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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.