Home / 142,919.76-214,381.45-54,149.42

Finding the Fourth Proportional to 142,919.76, 214,381.45 and 54,149.42

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Solution

The fourth proportional to 142,919.76, 214,381.45 and 54,149.42 is: 81,224.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,919.76 : 214,381.45 = 54,149.42 : x
  2. Step 2: Convert to fraction form
    142,919.76/214,381.45 = 54,149.42/x
  3. Step 3: Cross multiply
    142,919.76x = 214,381.45 × 54,149.42
  4. Step 4: Simplify right side
    142,919.76x = 11,608,631,176.26
  5. Step 5: Solve for x
    x = 11,608,631,176.26/142,919.76
  6. Step 6: Final answer
    x = 81,224.82

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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.