Home / 118,337.94-177,375.42-90,165.11

Finding the Fourth Proportional to 118,337.94, 177,375.42 and 90,165.11

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Solution

The fourth proportional to 118,337.94, 177,375.42 and 90,165.11 is: 135,147.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,337.94 : 177,375.42 = 90,165.11 : x
  2. Step 2: Convert to fraction form
    118,337.94/177,375.42 = 90,165.11/x
  3. Step 3: Cross multiply
    118,337.94x = 177,375.42 × 90,165.11
  4. Step 4: Simplify right side
    118,337.94x = 15,993,073,368.72
  5. Step 5: Solve for x
    x = 15,993,073,368.72/118,337.94
  6. Step 6: Final answer
    x = 135,147.47

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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.