Home / 121,530.62-182,033.48-118,556.30

Finding the Fourth Proportional to 121,530.62, 182,033.48 and 118,556.30

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Solution

The fourth proportional to 121,530.62, 182,033.48 and 118,556.30 is: 177,578.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,530.62 : 182,033.48 = 118,556.30 : x
  2. Step 2: Convert to fraction form
    121,530.62/182,033.48 = 118,556.30/x
  3. Step 3: Cross multiply
    121,530.62x = 182,033.48 × 118,556.30
  4. Step 4: Simplify right side
    121,530.62x = 21,581,215,251.15
  5. Step 5: Solve for x
    x = 21,581,215,251.15/121,530.62
  6. Step 6: Final answer
    x = 177,578.43

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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.