Home / 131,891.12-197,756.94-51,833.28

Finding the Fourth Proportional to 131,891.12, 197,756.94 and 51,833.28

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Solution

The fourth proportional to 131,891.12, 197,756.94 and 51,833.28 is: 77,718.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,891.12 : 197,756.94 = 51,833.28 : x
  2. Step 2: Convert to fraction form
    131,891.12/197,756.94 = 51,833.28/x
  3. Step 3: Cross multiply
    131,891.12x = 197,756.94 × 51,833.28
  4. Step 4: Simplify right side
    131,891.12x = 10,250,390,842.96
  5. Step 5: Solve for x
    x = 10,250,390,842.96/131,891.12
  6. Step 6: Final answer
    x = 77,718.58

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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.