Home / 140,013.60-193,218.20-76,351.44

Finding the Fourth Proportional to 140,013.60, 193,218.20 and 76,351.44

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Solution

The fourth proportional to 140,013.60, 193,218.20 and 76,351.44 is: 105,364.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,013.60 : 193,218.20 = 76,351.44 : x
  2. Step 2: Convert to fraction form
    140,013.60/193,218.20 = 76,351.44/x
  3. Step 3: Cross multiply
    140,013.60x = 193,218.20 × 76,351.44
  4. Step 4: Simplify right side
    140,013.60x = 14,752,487,804.21
  5. Step 5: Solve for x
    x = 14,752,487,804.21/140,013.60
  6. Step 6: Final answer
    x = 105,364.68

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1.5x scale

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.