Home / 140,631.78-210,845.92-83,570.44

Finding the Fourth Proportional to 140,631.78, 210,845.92 and 83,570.44

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Solution

The fourth proportional to 140,631.78, 210,845.92 and 83,570.44 is: 125,295.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,631.78 : 210,845.92 = 83,570.44 : x
  2. Step 2: Convert to fraction form
    140,631.78/210,845.92 = 83,570.44/x
  3. Step 3: Cross multiply
    140,631.78x = 210,845.92 × 83,570.44
  4. Step 4: Simplify right side
    140,631.78x = 17,620,486,306.60
  5. Step 5: Solve for x
    x = 17,620,486,306.60/140,631.78
  6. Step 6: Final answer
    x = 125,295.20

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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.