Home / 117,134.20-175,700.76-90,518.86

Finding the Fourth Proportional to 117,134.20, 175,700.76 and 90,518.86

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Solution

The fourth proportional to 117,134.20, 175,700.76 and 90,518.86 is: 135,777.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,134.20 : 175,700.76 = 90,518.86 : x
  2. Step 2: Convert to fraction form
    117,134.20/175,700.76 = 90,518.86/x
  3. Step 3: Cross multiply
    117,134.20x = 175,700.76 × 90,518.86
  4. Step 4: Simplify right side
    117,134.20x = 15,904,232,496.33
  5. Step 5: Solve for x
    x = 15,904,232,496.33/117,134.20
  6. Step 6: Final answer
    x = 135,777.87

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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.