Home / 90,228.20-135,388.96-65,472.34

Finding the Fourth Proportional to 90,228.20, 135,388.96 and 65,472.34

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Solution

The fourth proportional to 90,228.20, 135,388.96 and 65,472.34 is: 98,242.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,228.20 : 135,388.96 = 65,472.34 : x
  2. Step 2: Convert to fraction form
    90,228.20/135,388.96 = 65,472.34/x
  3. Step 3: Cross multiply
    90,228.20x = 135,388.96 × 65,472.34
  4. Step 4: Simplify right side
    90,228.20x = 8,864,232,021.37
  5. Step 5: Solve for x
    x = 8,864,232,021.37/90,228.20
  6. Step 6: Final answer
    x = 98,242.37

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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.