Home / 168,017.36-252,033.08-78,144.39

Finding the Fourth Proportional to 168,017.36, 252,033.08 and 78,144.39

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Solution

The fourth proportional to 168,017.36, 252,033.08 and 78,144.39 is: 117,219.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,017.36 : 252,033.08 = 78,144.39 : x
  2. Step 2: Convert to fraction form
    168,017.36/252,033.08 = 78,144.39/x
  3. Step 3: Cross multiply
    168,017.36x = 252,033.08 × 78,144.39
  4. Step 4: Simplify right side
    168,017.36x = 19,694,970,905.70
  5. Step 5: Solve for x
    x = 19,694,970,905.70/168,017.36
  6. Step 6: Final answer
    x = 117,219.86

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1.5x scale

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.