Home / 121,138.25-181,694.61-32,400.72

Finding the Fourth Proportional to 121,138.25, 181,694.61 and 32,400.72

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Solution

The fourth proportional to 121,138.25, 181,694.61 and 32,400.72 is: 48,597.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,138.25 : 181,694.61 = 32,400.72 : x
  2. Step 2: Convert to fraction form
    121,138.25/181,694.61 = 32,400.72/x
  3. Step 3: Cross multiply
    121,138.25x = 181,694.61 × 32,400.72
  4. Step 4: Simplify right side
    121,138.25x = 5,887,036,184.12
  5. Step 5: Solve for x
    x = 5,887,036,184.12/121,138.25
  6. Step 6: Final answer
    x = 48,597.67

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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.