Home / 118,345.68-177,180.60-90,233.04

Finding the Fourth Proportional to 118,345.68, 177,180.60 and 90,233.04

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Solution

The fourth proportional to 118,345.68, 177,180.60 and 90,233.04 is: 135,091.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,345.68 : 177,180.60 = 90,233.04 : x
  2. Step 2: Convert to fraction form
    118,345.68/177,180.60 = 90,233.04/x
  3. Step 3: Cross multiply
    118,345.68x = 177,180.60 × 90,233.04
  4. Step 4: Simplify right side
    118,345.68x = 15,987,544,167.02
  5. Step 5: Solve for x
    x = 15,987,544,167.02/118,345.68
  6. Step 6: Final answer
    x = 135,091.91

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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.