Home / 100,579.30-150,966.15-50,715.70

Finding the Fourth Proportional to 100,579.30, 150,966.15 and 50,715.70

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Solution

The fourth proportional to 100,579.30, 150,966.15 and 50,715.70 is: 76,122.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,579.30 : 150,966.15 = 50,715.70 : x
  2. Step 2: Convert to fraction form
    100,579.30/150,966.15 = 50,715.70/x
  3. Step 3: Cross multiply
    100,579.30x = 150,966.15 × 50,715.70
  4. Step 4: Simplify right side
    100,579.30x = 7,656,353,973.56
  5. Step 5: Solve for x
    x = 7,656,353,973.56/100,579.30
  6. Step 6: Final answer
    x = 76,122.56

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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.