Home / 103,986.70-143,508.20-58,648.14

Finding the Fourth Proportional to 103,986.70, 143,508.20 and 58,648.14

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Solution

The fourth proportional to 103,986.70, 143,508.20 and 58,648.14 is: 80,938.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,986.70 : 143,508.20 = 58,648.14 : x
  2. Step 2: Convert to fraction form
    103,986.70/143,508.20 = 58,648.14/x
  3. Step 3: Cross multiply
    103,986.70x = 143,508.20 × 58,648.14
  4. Step 4: Simplify right side
    103,986.70x = 8,416,488,613.21
  5. Step 5: Solve for x
    x = 8,416,488,613.21/103,986.70
  6. Step 6: Final answer
    x = 80,938.13

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1.5x scale

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.