Home / 255,190.25-352,162.55-142,013.09

Finding the Fourth Proportional to 255,190.25, 352,162.55 and 142,013.09

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Solution

The fourth proportional to 255,190.25, 352,162.55 and 142,013.09 is: 195,978.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,190.25 : 352,162.55 = 142,013.09 : x
  2. Step 2: Convert to fraction form
    255,190.25/352,162.55 = 142,013.09/x
  3. Step 3: Cross multiply
    255,190.25x = 352,162.55 × 142,013.09
  4. Step 4: Simplify right side
    255,190.25x = 50,011,691,907.78
  5. Step 5: Solve for x
    x = 50,011,691,907.78/255,190.25
  6. Step 6: Final answer
    x = 195,978.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.