Home / 163,717.80-245,634.30-80,556.20

Finding the Fourth Proportional to 163,717.80, 245,634.30 and 80,556.20

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Solution

The fourth proportional to 163,717.80, 245,634.30 and 80,556.20 is: 120,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,717.80 : 245,634.30 = 80,556.20 : x
  2. Step 2: Convert to fraction form
    163,717.80/245,634.30 = 80,556.20/x
  3. Step 3: Cross multiply
    163,717.80x = 245,634.30 × 80,556.20
  4. Step 4: Simplify right side
    163,717.80x = 19,787,365,797.66
  5. Step 5: Solve for x
    x = 19,787,365,797.66/163,717.80
  6. Step 6: Final answer
    x = 120,862.64

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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.