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Finding the Fourth Proportional to 131,775.88, 181,850.48 and 71,346.52

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Solution

The fourth proportional to 131,775.88, 181,850.48 and 71,346.52 is: 98,458.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,775.88 : 181,850.48 = 71,346.52 : x
  2. Step 2: Convert to fraction form
    131,775.88/181,850.48 = 71,346.52/x
  3. Step 3: Cross multiply
    131,775.88x = 181,850.48 × 71,346.52
  4. Step 4: Simplify right side
    131,775.88x = 12,974,397,822.89
  5. Step 5: Solve for x
    x = 12,974,397,822.89/131,775.88
  6. Step 6: Final answer
    x = 98,458.06

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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.