Home / 140,437.80-193,842.18-83,874.60

Finding the Fourth Proportional to 140,437.80, 193,842.18 and 83,874.60

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Solution

The fourth proportional to 140,437.80, 193,842.18 and 83,874.60 is: 115,769.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,437.80 : 193,842.18 = 83,874.60 : x
  2. Step 2: Convert to fraction form
    140,437.80/193,842.18 = 83,874.60/x
  3. Step 3: Cross multiply
    140,437.80x = 193,842.18 × 83,874.60
  4. Step 4: Simplify right side
    140,437.80x = 16,258,435,310.63
  5. Step 5: Solve for x
    x = 16,258,435,310.63/140,437.80
  6. Step 6: Final answer
    x = 115,769.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.