Home / 121,622.13-182,516.25-42,736.37

Finding the Fourth Proportional to 121,622.13, 182,516.25 and 42,736.37

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Solution

The fourth proportional to 121,622.13, 182,516.25 and 42,736.37 is: 64,133.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,622.13 : 182,516.25 = 42,736.37 : x
  2. Step 2: Convert to fraction form
    121,622.13/182,516.25 = 42,736.37/x
  3. Step 3: Cross multiply
    121,622.13x = 182,516.25 × 42,736.37
  4. Step 4: Simplify right side
    121,622.13x = 7,800,081,078.43
  5. Step 5: Solve for x
    x = 7,800,081,078.43/121,622.13
  6. Step 6: Final answer
    x = 64,133.73

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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.