Home / 207,844.12-311,689.26-74,688.52

Finding the Fourth Proportional to 207,844.12, 311,689.26 and 74,688.52

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Solution

The fourth proportional to 207,844.12, 311,689.26 and 74,688.52 is: 112,005.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,844.12 : 311,689.26 = 74,688.52 : x
  2. Step 2: Convert to fraction form
    207,844.12/311,689.26 = 74,688.52/x
  3. Step 3: Cross multiply
    207,844.12x = 311,689.26 × 74,688.52
  4. Step 4: Simplify right side
    207,844.12x = 23,279,609,529.30
  5. Step 5: Solve for x
    x = 23,279,609,529.30/207,844.12
  6. Step 6: Final answer
    x = 112,005.14

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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.