Home / 131,813.20-182,201.34-121,350.52

Finding the Fourth Proportional to 131,813.20, 182,201.34 and 121,350.52

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Solution

The fourth proportional to 131,813.20, 182,201.34 and 121,350.52 is: 167,739.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,813.20 : 182,201.34 = 121,350.52 : x
  2. Step 2: Convert to fraction form
    131,813.20/182,201.34 = 121,350.52/x
  3. Step 3: Cross multiply
    131,813.20x = 182,201.34 × 121,350.52
  4. Step 4: Simplify right side
    131,813.20x = 22,110,227,353.70
  5. Step 5: Solve for x
    x = 22,110,227,353.70/131,813.20
  6. Step 6: Final answer
    x = 167,739.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.