Home / 140,437.84-193,781.82-80,009.68

Finding the Fourth Proportional to 140,437.84, 193,781.82 and 80,009.68

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Solution

The fourth proportional to 140,437.84, 193,781.82 and 80,009.68 is: 110,400.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,437.84 : 193,781.82 = 80,009.68 : x
  2. Step 2: Convert to fraction form
    140,437.84/193,781.82 = 80,009.68/x
  3. Step 3: Cross multiply
    140,437.84x = 193,781.82 × 80,009.68
  4. Step 4: Simplify right side
    140,437.84x = 15,504,421,408.02
  5. Step 5: Solve for x
    x = 15,504,421,408.02/140,437.84
  6. Step 6: Final answer
    x = 110,400.60

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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.