Home / 163,291.20-225,366.45-99,665.97

Finding the Fourth Proportional to 163,291.20, 225,366.45 and 99,665.97

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Solution

The fourth proportional to 163,291.20, 225,366.45 and 99,665.97 is: 137,554.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,291.20 : 225,366.45 = 99,665.97 : x
  2. Step 2: Convert to fraction form
    163,291.20/225,366.45 = 99,665.97/x
  3. Step 3: Cross multiply
    163,291.20x = 225,366.45 × 99,665.97
  4. Step 4: Simplify right side
    163,291.20x = 22,461,365,844.71
  5. Step 5: Solve for x
    x = 22,461,365,844.71/163,291.20
  6. Step 6: Final answer
    x = 137,554.05

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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.