Home / 215,996.29-324,139.05-89,636.67

Finding the Fourth Proportional to 215,996.29, 324,139.05 and 89,636.67

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Solution

The fourth proportional to 215,996.29, 324,139.05 and 89,636.67 is: 134,515.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,996.29 : 324,139.05 = 89,636.67 : x
  2. Step 2: Convert to fraction form
    215,996.29/324,139.05 = 89,636.67/x
  3. Step 3: Cross multiply
    215,996.29x = 324,139.05 × 89,636.67
  4. Step 4: Simplify right side
    215,996.29x = 29,054,745,058.96
  5. Step 5: Solve for x
    x = 29,054,745,058.96/215,996.29
  6. Step 6: Final answer
    x = 134,515.02

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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.