Home / 131,449.88-197,237-68,236.40

Finding the Fourth Proportional to 131,449.88, 197,237 and 68,236.40

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Solution

The fourth proportional to 131,449.88, 197,237 and 68,236.40 is: 102,386.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,449.88 : 197,237 = 68,236.40 : x
  2. Step 2: Convert to fraction form
    131,449.88/197,237 = 68,236.40/x
  3. Step 3: Cross multiply
    131,449.88x = 197,237 × 68,236.40
  4. Step 4: Simplify right side
    131,449.88x = 13,458,742,826.80
  5. Step 5: Solve for x
    x = 13,458,742,826.80/131,449.88
  6. Step 6: Final answer
    x = 102,386.88

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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.