Home / 150,621.12-225,759.84-70,575.36

Finding the Fourth Proportional to 150,621.12, 225,759.84 and 70,575.36

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Solution

The fourth proportional to 150,621.12, 225,759.84 and 70,575.36 is: 105,782.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,621.12 : 225,759.84 = 70,575.36 : x
  2. Step 2: Convert to fraction form
    150,621.12/225,759.84 = 70,575.36/x
  3. Step 3: Cross multiply
    150,621.12x = 225,759.84 × 70,575.36
  4. Step 4: Simplify right side
    150,621.12x = 15,933,081,981.54
  5. Step 5: Solve for x
    x = 15,933,081,981.54/150,621.12
  6. Step 6: Final answer
    x = 105,782.52

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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.