Home / 131,259.05-195,864.30-117,121.71

Finding the Fourth Proportional to 131,259.05, 195,864.30 and 117,121.71

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Solution

The fourth proportional to 131,259.05, 195,864.30 and 117,121.71 is: 174,768.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,259.05 : 195,864.30 = 117,121.71 : x
  2. Step 2: Convert to fraction form
    131,259.05/195,864.30 = 117,121.71/x
  3. Step 3: Cross multiply
    131,259.05x = 195,864.30 × 117,121.71
  4. Step 4: Simplify right side
    131,259.05x = 22,939,961,743.95
  5. Step 5: Solve for x
    x = 22,939,961,743.95/131,259.05
  6. Step 6: Final answer
    x = 174,768.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.