Home / 121,179.39-181,852.12-42,293.62

Finding the Fourth Proportional to 121,179.39, 181,852.12 and 42,293.62

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Solution

The fourth proportional to 121,179.39, 181,852.12 and 42,293.62 is: 63,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,179.39 : 181,852.12 = 42,293.62 : x
  2. Step 2: Convert to fraction form
    121,179.39/181,852.12 = 42,293.62/x
  3. Step 3: Cross multiply
    121,179.39x = 181,852.12 × 42,293.62
  4. Step 4: Simplify right side
    121,179.39x = 7,691,183,338.75
  5. Step 5: Solve for x
    x = 7,691,183,338.75/121,179.39
  6. Step 6: Final answer
    x = 63,469.40

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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.