Home / 110,165.32-165,218.46-47,821

Finding the Fourth Proportional to 110,165.32, 165,218.46 and 47,821

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Solution

The fourth proportional to 110,165.32, 165,218.46 and 47,821 is: 71,718.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,165.32 : 165,218.46 = 47,821 : x
  2. Step 2: Convert to fraction form
    110,165.32/165,218.46 = 47,821/x
  3. Step 3: Cross multiply
    110,165.32x = 165,218.46 × 47,821
  4. Step 4: Simplify right side
    110,165.32x = 7,900,911,975.66
  5. Step 5: Solve for x
    x = 7,900,911,975.66/110,165.32
  6. Step 6: Final answer
    x = 71,718.69

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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.