Home / 100,799.60-151,172.28-30,660.08

Finding the Fourth Proportional to 100,799.60, 151,172.28 and 30,660.08

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Solution

The fourth proportional to 100,799.60, 151,172.28 and 30,660.08 is: 45,981.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,799.60 : 151,172.28 = 30,660.08 : x
  2. Step 2: Convert to fraction form
    100,799.60/151,172.28 = 30,660.08/x
  3. Step 3: Cross multiply
    100,799.60x = 151,172.28 × 30,660.08
  4. Step 4: Simplify right side
    100,799.60x = 4,634,954,198.58
  5. Step 5: Solve for x
    x = 4,634,954,198.58/100,799.60
  6. Step 6: Final answer
    x = 45,981.87

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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.