Home / 90,208.33-135,342.55-30,242.73

Finding the Fourth Proportional to 90,208.33, 135,342.55 and 30,242.73

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Solution

The fourth proportional to 90,208.33, 135,342.55 and 30,242.73 is: 45,374.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,208.33 : 135,342.55 = 30,242.73 : x
  2. Step 2: Convert to fraction form
    90,208.33/135,342.55 = 30,242.73/x
  3. Step 3: Cross multiply
    90,208.33x = 135,342.55 × 30,242.73
  4. Step 4: Simplify right side
    90,208.33x = 4,093,128,526.54
  5. Step 5: Solve for x
    x = 4,093,128,526.54/90,208.33
  6. Step 6: Final answer
    x = 45,374.18

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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.