Home / 168,013.33-252,027.09-78,140.39

Finding the Fourth Proportional to 168,013.33, 252,027.09 and 78,140.39

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Solution

The fourth proportional to 168,013.33, 252,027.09 and 78,140.39 is: 117,213.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,013.33 : 252,027.09 = 78,140.39 : x
  2. Step 2: Convert to fraction form
    168,013.33/252,027.09 = 78,140.39/x
  3. Step 3: Cross multiply
    168,013.33x = 252,027.09 × 78,140.39
  4. Step 4: Simplify right side
    168,013.33x = 19,693,494,907.81
  5. Step 5: Solve for x
    x = 19,693,494,907.81/168,013.33
  6. Step 6: Final answer
    x = 117,213.88

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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.