Home / 140,451.30-193,839.81-79,209.15

Finding the Fourth Proportional to 140,451.30, 193,839.81 and 79,209.15

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Solution

The fourth proportional to 140,451.30, 193,839.81 and 79,209.15 is: 109,318.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,451.30 : 193,839.81 = 79,209.15 : x
  2. Step 2: Convert to fraction form
    140,451.30/193,839.81 = 79,209.15/x
  3. Step 3: Cross multiply
    140,451.30x = 193,839.81 × 79,209.15
  4. Step 4: Simplify right side
    140,451.30x = 15,353,886,586.26
  5. Step 5: Solve for x
    x = 15,353,886,586.26/140,451.30
  6. Step 6: Final answer
    x = 109,318.22

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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.