Home / 131,767.94-181,839.84-71,338.60

Finding the Fourth Proportional to 131,767.94, 181,839.84 and 71,338.60

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Solution

The fourth proportional to 131,767.94, 181,839.84 and 71,338.60 is: 98,447.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,767.94 : 181,839.84 = 71,338.60 : x
  2. Step 2: Convert to fraction form
    131,767.94/181,839.84 = 71,338.60/x
  3. Step 3: Cross multiply
    131,767.94x = 181,839.84 × 71,338.60
  4. Step 4: Simplify right side
    131,767.94x = 12,972,199,569.60
  5. Step 5: Solve for x
    x = 12,972,199,569.60/131,767.94
  6. Step 6: Final answer
    x = 98,447.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.