Home / 100,309.08-150,465.78-47,723.88

Finding the Fourth Proportional to 100,309.08, 150,465.78 and 47,723.88

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Solution

The fourth proportional to 100,309.08, 150,465.78 and 47,723.88 is: 71,586.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,309.08 : 150,465.78 = 47,723.88 : x
  2. Step 2: Convert to fraction form
    100,309.08/150,465.78 = 47,723.88/x
  3. Step 3: Cross multiply
    100,309.08x = 150,465.78 × 47,723.88
  4. Step 4: Simplify right side
    100,309.08x = 7,180,810,828.83
  5. Step 5: Solve for x
    x = 7,180,810,828.83/100,309.08
  6. Step 6: Final answer
    x = 71,586.85

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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.