Home / 148,439.40-222,715.50-89,315.88

Finding the Fourth Proportional to 148,439.40, 222,715.50 and 89,315.88

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Solution

The fourth proportional to 148,439.40, 222,715.50 and 89,315.88 is: 134,007.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,439.40 : 222,715.50 = 89,315.88 : x
  2. Step 2: Convert to fraction form
    148,439.40/222,715.50 = 89,315.88/x
  3. Step 3: Cross multiply
    148,439.40x = 222,715.50 × 89,315.88
  4. Step 4: Simplify right side
    148,439.40x = 19,892,030,872.14
  5. Step 5: Solve for x
    x = 19,892,030,872.14/148,439.40
  6. Step 6: Final answer
    x = 134,007.76

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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.