Home / 131,731.47-197,597.70-31,891.50

Finding the Fourth Proportional to 131,731.47, 197,597.70 and 31,891.50

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Solution

The fourth proportional to 131,731.47, 197,597.70 and 31,891.50 is: 47,837.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,731.47 : 197,597.70 = 31,891.50 : x
  2. Step 2: Convert to fraction form
    131,731.47/197,597.70 = 31,891.50/x
  3. Step 3: Cross multiply
    131,731.47x = 197,597.70 × 31,891.50
  4. Step 4: Simplify right side
    131,731.47x = 6,301,687,049.55
  5. Step 5: Solve for x
    x = 6,301,687,049.55/131,731.47
  6. Step 6: Final answer
    x = 47,837.37

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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.