Home / 156,989.20-235,481.91-38,661.70

Finding the Fourth Proportional to 156,989.20, 235,481.91 and 38,661.70

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Solution

The fourth proportional to 156,989.20, 235,481.91 and 38,661.70 is: 57,992.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,989.20 : 235,481.91 = 38,661.70 : x
  2. Step 2: Convert to fraction form
    156,989.20/235,481.91 = 38,661.70/x
  3. Step 3: Cross multiply
    156,989.20x = 235,481.91 × 38,661.70
  4. Step 4: Simplify right side
    156,989.20x = 9,104,130,959.85
  5. Step 5: Solve for x
    x = 9,104,130,959.85/156,989.20
  6. Step 6: Final answer
    x = 57,992.08

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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.