Home / 163,081.49-225,077.06-99,456.20

Finding the Fourth Proportional to 163,081.49, 225,077.06 and 99,456.20

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Solution

The fourth proportional to 163,081.49, 225,077.06 and 99,456.20 is: 137,264.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,081.49 : 225,077.06 = 99,456.20 : x
  2. Step 2: Convert to fraction form
    163,081.49/225,077.06 = 99,456.20/x
  3. Step 3: Cross multiply
    163,081.49x = 225,077.06 × 99,456.20
  4. Step 4: Simplify right side
    163,081.49x = 22,385,309,094.77
  5. Step 5: Solve for x
    x = 22,385,309,094.77/163,081.49
  6. Step 6: Final answer
    x = 137,264.56

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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.