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Finding the Fourth Proportional to 115,393.67, 173,025.57 and 79,412.39

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Solution

The fourth proportional to 115,393.67, 173,025.57 and 79,412.39 is: 119,073.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,393.67 : 173,025.57 = 79,412.39 : x
  2. Step 2: Convert to fraction form
    115,393.67/173,025.57 = 79,412.39/x
  3. Step 3: Cross multiply
    115,393.67x = 173,025.57 × 79,412.39
  4. Step 4: Simplify right side
    115,393.67x = 13,740,373,179.68
  5. Step 5: Solve for x
    x = 13,740,373,179.68/115,393.67
  6. Step 6: Final answer
    x = 119,073.90

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1.5x scale

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.