Home / 168,742.40-253,238.08-79,995.52

Finding the Fourth Proportional to 168,742.40, 253,238.08 and 79,995.52

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Solution

The fourth proportional to 168,742.40, 253,238.08 and 79,995.52 is: 120,052.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,742.40 : 253,238.08 = 79,995.52 : x
  2. Step 2: Convert to fraction form
    168,742.40/253,238.08 = 79,995.52/x
  3. Step 3: Cross multiply
    168,742.40x = 253,238.08 × 79,995.52
  4. Step 4: Simplify right side
    168,742.40x = 20,257,911,893.40
  5. Step 5: Solve for x
    x = 20,257,911,893.40/168,742.40
  6. Step 6: Final answer
    x = 120,052.29

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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.