Home / 209,293.60-313,933.36-90,964.92

Finding the Fourth Proportional to 209,293.60, 313,933.36 and 90,964.92

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Solution

The fourth proportional to 209,293.60, 313,933.36 and 90,964.92 is: 136,444.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,293.60 : 313,933.36 = 90,964.92 : x
  2. Step 2: Convert to fraction form
    209,293.60/313,933.36 = 90,964.92/x
  3. Step 3: Cross multiply
    209,293.60x = 313,933.36 × 90,964.92
  4. Step 4: Simplify right side
    209,293.60x = 28,556,922,977.73
  5. Step 5: Solve for x
    x = 28,556,922,977.73/209,293.60
  6. Step 6: Final answer
    x = 136,444.32

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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.