Home / 121,265.82-181,890.26-45,349.91

Finding the Fourth Proportional to 121,265.82, 181,890.26 and 45,349.91

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Solution

The fourth proportional to 121,265.82, 181,890.26 and 45,349.91 is: 68,021.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,265.82 : 181,890.26 = 45,349.91 : x
  2. Step 2: Convert to fraction form
    121,265.82/181,890.26 = 45,349.91/x
  3. Step 3: Cross multiply
    121,265.82x = 181,890.26 × 45,349.91
  4. Step 4: Simplify right side
    121,265.82x = 8,248,705,784.68
  5. Step 5: Solve for x
    x = 8,248,705,784.68/121,265.82
  6. Step 6: Final answer
    x = 68,021.69

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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.