Home / 135,390.17-203,154.41-90,442.26

Finding the Fourth Proportional to 135,390.17, 203,154.41 and 90,442.26

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Solution

The fourth proportional to 135,390.17, 203,154.41 and 90,442.26 is: 135,709.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,390.17 : 203,154.41 = 90,442.26 : x
  2. Step 2: Convert to fraction form
    135,390.17/203,154.41 = 90,442.26/x
  3. Step 3: Cross multiply
    135,390.17x = 203,154.41 × 90,442.26
  4. Step 4: Simplify right side
    135,390.17x = 18,373,744,195.47
  5. Step 5: Solve for x
    x = 18,373,744,195.47/135,390.17
  6. Step 6: Final answer
    x = 135,709.59

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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.