Home / 103,688.22-143,092.42-58,367.82

Finding the Fourth Proportional to 103,688.22, 143,092.42 and 58,367.82

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Solution

The fourth proportional to 103,688.22, 143,092.42 and 58,367.82 is: 80,549.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,688.22 : 143,092.42 = 58,367.82 : x
  2. Step 2: Convert to fraction form
    103,688.22/143,092.42 = 58,367.82/x
  3. Step 3: Cross multiply
    103,688.22x = 143,092.42 × 58,367.82
  4. Step 4: Simplify right side
    103,688.22x = 8,351,992,613.92
  5. Step 5: Solve for x
    x = 8,351,992,613.92/103,688.22
  6. Step 6: Final answer
    x = 80,549.10

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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.