Home / 95,424.80-143,137.20-90,613.40

Finding the Fourth Proportional to 95,424.80, 143,137.20 and 90,613.40

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Solution

The fourth proportional to 95,424.80, 143,137.20 and 90,613.40 is: 135,920.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,424.80 : 143,137.20 = 90,613.40 : x
  2. Step 2: Convert to fraction form
    95,424.80/143,137.20 = 90,613.40/x
  3. Step 3: Cross multiply
    95,424.80x = 143,137.20 × 90,613.40
  4. Step 4: Simplify right side
    95,424.80x = 12,970,148,358.48
  5. Step 5: Solve for x
    x = 12,970,148,358.48/95,424.80
  6. Step 6: Final answer
    x = 135,920.10

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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.