Home / 131,447.65-197,340.96-112,847.21

Finding the Fourth Proportional to 131,447.65, 197,340.96 and 112,847.21

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Solution

The fourth proportional to 131,447.65, 197,340.96 and 112,847.21 is: 169,416.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,447.65 : 197,340.96 = 112,847.21 : x
  2. Step 2: Convert to fraction form
    131,447.65/197,340.96 = 112,847.21/x
  3. Step 3: Cross multiply
    131,447.65x = 197,340.96 × 112,847.21
  4. Step 4: Simplify right side
    131,447.65x = 22,269,376,754.72
  5. Step 5: Solve for x
    x = 22,269,376,754.72/131,447.65
  6. Step 6: Final answer
    x = 169,416.32

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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.