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Finding the Fourth Proportional to 143,230.52, 214,860.66 and 68,338.04

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Solution

The fourth proportional to 143,230.52, 214,860.66 and 68,338.04 is: 102,514.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,230.52 : 214,860.66 = 68,338.04 : x
  2. Step 2: Convert to fraction form
    143,230.52/214,860.66 = 68,338.04/x
  3. Step 3: Cross multiply
    143,230.52x = 214,860.66 × 68,338.04
  4. Step 4: Simplify right side
    143,230.52x = 14,683,156,377.51
  5. Step 5: Solve for x
    x = 14,683,156,377.51/143,230.52
  6. Step 6: Final answer
    x = 102,514.16

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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.