Home / 145,222.39-200,383.36-90,768.12

Finding the Fourth Proportional to 145,222.39, 200,383.36 and 90,768.12

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Solution

The fourth proportional to 145,222.39, 200,383.36 and 90,768.12 is: 125,245.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,222.39 : 200,383.36 = 90,768.12 : x
  2. Step 2: Convert to fraction form
    145,222.39/200,383.36 = 90,768.12/x
  3. Step 3: Cross multiply
    145,222.39x = 200,383.36 × 90,768.12
  4. Step 4: Simplify right side
    145,222.39x = 18,188,420,866.48
  5. Step 5: Solve for x
    x = 18,188,420,866.48/145,222.39
  6. Step 6: Final answer
    x = 125,245.29

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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.