Home / 143,829.54-215,744.12-38,648.51

Finding the Fourth Proportional to 143,829.54, 215,744.12 and 38,648.51

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Solution

The fourth proportional to 143,829.54, 215,744.12 and 38,648.51 is: 57,972.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,829.54 : 215,744.12 = 38,648.51 : x
  2. Step 2: Convert to fraction form
    143,829.54/215,744.12 = 38,648.51/x
  3. Step 3: Cross multiply
    143,829.54x = 215,744.12 × 38,648.51
  4. Step 4: Simplify right side
    143,829.54x = 8,338,188,678.67
  5. Step 5: Solve for x
    x = 8,338,188,678.67/143,829.54
  6. Step 6: Final answer
    x = 57,972.71

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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.