Home / 112,505.20-168,563.40-53,213.20

Finding the Fourth Proportional to 112,505.20, 168,563.40 and 53,213.20

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Solution

The fourth proportional to 112,505.20, 168,563.40 and 53,213.20 is: 79,727.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,505.20 : 168,563.40 = 53,213.20 : x
  2. Step 2: Convert to fraction form
    112,505.20/168,563.40 = 53,213.20/x
  3. Step 3: Cross multiply
    112,505.20x = 168,563.40 × 53,213.20
  4. Step 4: Simplify right side
    112,505.20x = 8,969,797,916.88
  5. Step 5: Solve for x
    x = 8,969,797,916.88/112,505.20
  6. Step 6: Final answer
    x = 79,727.85

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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.