Home / 90,119.33-135,208.62-36,856.12

Finding the Fourth Proportional to 90,119.33, 135,208.62 and 36,856.12

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Solution

The fourth proportional to 90,119.33, 135,208.62 and 36,856.12 is: 55,296.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,119.33 : 135,208.62 = 36,856.12 : x
  2. Step 2: Convert to fraction form
    90,119.33/135,208.62 = 36,856.12/x
  3. Step 3: Cross multiply
    90,119.33x = 135,208.62 × 36,856.12
  4. Step 4: Simplify right side
    90,119.33x = 4,983,265,123.75
  5. Step 5: Solve for x
    x = 4,983,265,123.75/90,119.33
  6. Step 6: Final answer
    x = 55,296.30

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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.