Home / 209,145.60-313,891.20-96,998.40

Finding the Fourth Proportional to 209,145.60, 313,891.20 and 96,998.40

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Solution

The fourth proportional to 209,145.60, 313,891.20 and 96,998.40 is: 145,577.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,145.60 : 313,891.20 = 96,998.40 : x
  2. Step 2: Convert to fraction form
    209,145.60/313,891.20 = 96,998.40/x
  3. Step 3: Cross multiply
    209,145.60x = 313,891.20 × 96,998.40
  4. Step 4: Simplify right side
    209,145.60x = 30,446,944,174.08
  5. Step 5: Solve for x
    x = 30,446,944,174.08/209,145.60
  6. Step 6: Final answer
    x = 145,577.74

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1.5x scale

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.