Home / 140,100.32-193,334.28-79,677.56

Finding the Fourth Proportional to 140,100.32, 193,334.28 and 79,677.56

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Solution

The fourth proportional to 140,100.32, 193,334.28 and 79,677.56 is: 109,952.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,100.32 : 193,334.28 = 79,677.56 : x
  2. Step 2: Convert to fraction form
    140,100.32/193,334.28 = 79,677.56/x
  3. Step 3: Cross multiply
    140,100.32x = 193,334.28 × 79,677.56
  4. Step 4: Simplify right side
    140,100.32x = 15,404,402,728.09
  5. Step 5: Solve for x
    x = 15,404,402,728.09/140,100.32
  6. Step 6: Final answer
    x = 109,952.66

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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.