Home / 209,489.88-289,099.54-113,998.04

Finding the Fourth Proportional to 209,489.88, 289,099.54 and 113,998.04

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Solution

The fourth proportional to 209,489.88, 289,099.54 and 113,998.04 is: 157,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,489.88 : 289,099.54 = 113,998.04 : x
  2. Step 2: Convert to fraction form
    209,489.88/289,099.54 = 113,998.04/x
  3. Step 3: Cross multiply
    209,489.88x = 289,099.54 × 113,998.04
  4. Step 4: Simplify right side
    209,489.88x = 32,956,780,924.90
  5. Step 5: Solve for x
    x = 32,956,780,924.90/209,489.88
  6. Step 6: Final answer
    x = 157,319.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.