Home / 101,520.44-152,280.18-67,715

Finding the Fourth Proportional to 101,520.44, 152,280.18 and 67,715

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Solution

The fourth proportional to 101,520.44, 152,280.18 and 67,715 is: 101,572.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,520.44 : 152,280.18 = 67,715 : x
  2. Step 2: Convert to fraction form
    101,520.44/152,280.18 = 67,715/x
  3. Step 3: Cross multiply
    101,520.44x = 152,280.18 × 67,715
  4. Step 4: Simplify right side
    101,520.44x = 10,311,652,388.70
  5. Step 5: Solve for x
    x = 10,311,652,388.70/101,520.44
  6. Step 6: Final answer
    x = 101,572.18

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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.