Home / 215,996.54-324,139.44-89,636.90

Finding the Fourth Proportional to 215,996.54, 324,139.44 and 89,636.90

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Solution

The fourth proportional to 215,996.54, 324,139.44 and 89,636.90 is: 134,515.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,996.54 : 324,139.44 = 89,636.90 : x
  2. Step 2: Convert to fraction form
    215,996.54/324,139.44 = 89,636.90/x
  3. Step 3: Cross multiply
    215,996.54x = 324,139.44 × 89,636.90
  4. Step 4: Simplify right side
    215,996.54x = 29,054,854,569.34
  5. Step 5: Solve for x
    x = 29,054,854,569.34/215,996.54
  6. Step 6: Final answer
    x = 134,515.37

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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.