Home / 118,272.80-163,217.15-64,556.66

Finding the Fourth Proportional to 118,272.80, 163,217.15 and 64,556.66

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Solution

The fourth proportional to 118,272.80, 163,217.15 and 64,556.66 is: 89,088.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,272.80 : 163,217.15 = 64,556.66 : x
  2. Step 2: Convert to fraction form
    118,272.80/163,217.15 = 64,556.66/x
  3. Step 3: Cross multiply
    118,272.80x = 163,217.15 × 64,556.66
  4. Step 4: Simplify right side
    118,272.80x = 10,536,752,919.85
  5. Step 5: Solve for x
    x = 10,536,752,919.85/118,272.80
  6. Step 6: Final answer
    x = 89,088.56

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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.