Home / 108,556.20-162,488.70-77,452.20

Finding the Fourth Proportional to 108,556.20, 162,488.70 and 77,452.20

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Solution

The fourth proportional to 108,556.20, 162,488.70 and 77,452.20 is: 115,931.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,556.20 : 162,488.70 = 77,452.20 : x
  2. Step 2: Convert to fraction form
    108,556.20/162,488.70 = 77,452.20/x
  3. Step 3: Cross multiply
    108,556.20x = 162,488.70 × 77,452.20
  4. Step 4: Simplify right side
    108,556.20x = 12,585,107,290.14
  5. Step 5: Solve for x
    x = 12,585,107,290.14/108,556.20
  6. Step 6: Final answer
    x = 115,931.72

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1.5x scale

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.