Home / 140,009.24-193,205.75-79,571.90

Finding the Fourth Proportional to 140,009.24, 193,205.75 and 79,571.90

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Solution

The fourth proportional to 140,009.24, 193,205.75 and 79,571.90 is: 109,805.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,009.24 : 193,205.75 = 79,571.90 : x
  2. Step 2: Convert to fraction form
    140,009.24/193,205.75 = 79,571.90/x
  3. Step 3: Cross multiply
    140,009.24x = 193,205.75 × 79,571.90
  4. Step 4: Simplify right side
    140,009.24x = 15,373,747,254.54
  5. Step 5: Solve for x
    x = 15,373,747,254.54/140,009.24
  6. Step 6: Final answer
    x = 109,805.24

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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.