Home / 163,972.80-245,959.20-75,399.30

Finding the Fourth Proportional to 163,972.80, 245,959.20 and 75,399.30

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Solution

The fourth proportional to 163,972.80, 245,959.20 and 75,399.30 is: 113,098.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,972.80 : 245,959.20 = 75,399.30 : x
  2. Step 2: Convert to fraction form
    163,972.80/245,959.20 = 75,399.30/x
  3. Step 3: Cross multiply
    163,972.80x = 245,959.20 × 75,399.30
  4. Step 4: Simplify right side
    163,972.80x = 18,545,151,508.56
  5. Step 5: Solve for x
    x = 18,545,151,508.56/163,972.80
  6. Step 6: Final answer
    x = 113,098.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.