Home / 100,942.62-139,305.51-58,514.46

Finding the Fourth Proportional to 100,942.62, 139,305.51 and 58,514.46

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Solution

The fourth proportional to 100,942.62, 139,305.51 and 58,514.46 is: 80,752.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,942.62 : 139,305.51 = 58,514.46 : x
  2. Step 2: Convert to fraction form
    100,942.62/139,305.51 = 58,514.46/x
  3. Step 3: Cross multiply
    100,942.62x = 139,305.51 × 58,514.46
  4. Step 4: Simplify right side
    100,942.62x = 8,151,386,692.67
  5. Step 5: Solve for x
    x = 8,151,386,692.67/100,942.62
  6. Step 6: Final answer
    x = 80,752.68

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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.