Home / 142,972.65-214,385.75-75,540.89

Finding the Fourth Proportional to 142,972.65, 214,385.75 and 75,540.89

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Solution

The fourth proportional to 142,972.65, 214,385.75 and 75,540.89 is: 113,272.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,972.65 : 214,385.75 = 75,540.89 : x
  2. Step 2: Convert to fraction form
    142,972.65/214,385.75 = 75,540.89/x
  3. Step 3: Cross multiply
    142,972.65x = 214,385.75 × 75,540.89
  4. Step 4: Simplify right side
    142,972.65x = 16,194,888,908.68
  5. Step 5: Solve for x
    x = 16,194,888,908.68/142,972.65
  6. Step 6: Final answer
    x = 113,272.64

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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.