Home / 215,441.28-323,023.05-103,118.76

Finding the Fourth Proportional to 215,441.28, 323,023.05 and 103,118.76

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Solution

The fourth proportional to 215,441.28, 323,023.05 and 103,118.76 is: 154,611.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,441.28 : 323,023.05 = 103,118.76 : x
  2. Step 2: Convert to fraction form
    215,441.28/323,023.05 = 103,118.76/x
  3. Step 3: Cross multiply
    215,441.28x = 323,023.05 × 103,118.76
  4. Step 4: Simplify right side
    215,441.28x = 33,309,736,367.42
  5. Step 5: Solve for x
    x = 33,309,736,367.42/215,441.28
  6. Step 6: Final answer
    x = 154,611.67

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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.