Home / 118,013.17-177,019.92-90,091.76

Finding the Fourth Proportional to 118,013.17, 177,019.92 and 90,091.76

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Solution

The fourth proportional to 118,013.17, 177,019.92 and 90,091.76 is: 135,137.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,013.17 : 177,019.92 = 90,091.76 : x
  2. Step 2: Convert to fraction form
    118,013.17/177,019.92 = 90,091.76/x
  3. Step 3: Cross multiply
    118,013.17x = 177,019.92 × 90,091.76
  4. Step 4: Simplify right side
    118,013.17x = 15,948,036,147.86
  5. Step 5: Solve for x
    x = 15,948,036,147.86/118,013.17
  6. Step 6: Final answer
    x = 135,137.77

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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.