Home / 143,134.20-214,701.30-101,143.80

Finding the Fourth Proportional to 143,134.20, 214,701.30 and 101,143.80

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Solution

The fourth proportional to 143,134.20, 214,701.30 and 101,143.80 is: 151,715.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,134.20 : 214,701.30 = 101,143.80 : x
  2. Step 2: Convert to fraction form
    143,134.20/214,701.30 = 101,143.80/x
  3. Step 3: Cross multiply
    143,134.20x = 214,701.30 × 101,143.80
  4. Step 4: Simplify right side
    143,134.20x = 21,715,705,346.94
  5. Step 5: Solve for x
    x = 21,715,705,346.94/143,134.20
  6. Step 6: Final answer
    x = 151,715.70

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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.