Home / 90,201.09-135,298.85-42,850.26

Finding the Fourth Proportional to 90,201.09, 135,298.85 and 42,850.26

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Solution

The fourth proportional to 90,201.09, 135,298.85 and 42,850.26 is: 64,274.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,201.09 : 135,298.85 = 42,850.26 : x
  2. Step 2: Convert to fraction form
    90,201.09/135,298.85 = 42,850.26/x
  3. Step 3: Cross multiply
    90,201.09x = 135,298.85 × 42,850.26
  4. Step 4: Simplify right side
    90,201.09x = 5,797,590,685.95
  5. Step 5: Solve for x
    x = 5,797,590,685.95/90,201.09
  6. Step 6: Final answer
    x = 64,274.06

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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.