Home / 109,199.25-163,799.78-30,319.62

Finding the Fourth Proportional to 109,199.25, 163,799.78 and 30,319.62

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Solution

The fourth proportional to 109,199.25, 163,799.78 and 30,319.62 is: 45,479.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,199.25 : 163,799.78 = 30,319.62 : x
  2. Step 2: Convert to fraction form
    109,199.25/163,799.78 = 30,319.62/x
  3. Step 3: Cross multiply
    109,199.25x = 163,799.78 × 30,319.62
  4. Step 4: Simplify right side
    109,199.25x = 4,966,346,934.09
  5. Step 5: Solve for x
    x = 4,966,346,934.09/109,199.25
  6. Step 6: Final answer
    x = 45,479.68

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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.