Home / 129,187.80-193,344.30-113,441.40

Finding the Fourth Proportional to 129,187.80, 193,344.30 and 113,441.40

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Solution

The fourth proportional to 129,187.80, 193,344.30 and 113,441.40 is: 169,778.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,187.80 : 193,344.30 = 113,441.40 : x
  2. Step 2: Convert to fraction form
    129,187.80/193,344.30 = 113,441.40/x
  3. Step 3: Cross multiply
    129,187.80x = 193,344.30 × 113,441.40
  4. Step 4: Simplify right side
    129,187.80x = 21,933,248,074.02
  5. Step 5: Solve for x
    x = 21,933,248,074.02/129,187.80
  6. Step 6: Final answer
    x = 169,778.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.