Home / 90,196.37-135,295.46-40,278.99

Finding the Fourth Proportional to 90,196.37, 135,295.46 and 40,278.99

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Solution

The fourth proportional to 90,196.37, 135,295.46 and 40,278.99 is: 60,418.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,196.37 : 135,295.46 = 40,278.99 : x
  2. Step 2: Convert to fraction form
    90,196.37/135,295.46 = 40,278.99/x
  3. Step 3: Cross multiply
    90,196.37x = 135,295.46 × 40,278.99
  4. Step 4: Simplify right side
    90,196.37x = 5,449,564,278.99
  5. Step 5: Solve for x
    x = 5,449,564,278.99/90,196.37
  6. Step 6: Final answer
    x = 60,418.89

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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.