Home / 143,319.69-214,984.39-38,138.76

Finding the Fourth Proportional to 143,319.69, 214,984.39 and 38,138.76

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Solution

The fourth proportional to 143,319.69, 214,984.39 and 38,138.76 is: 57,209.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,319.69 : 214,984.39 = 38,138.76 : x
  2. Step 2: Convert to fraction form
    143,319.69/214,984.39 = 38,138.76/x
  3. Step 3: Cross multiply
    143,319.69x = 214,984.39 × 38,138.76
  4. Step 4: Simplify right side
    143,319.69x = 8,199,237,958.61
  5. Step 5: Solve for x
    x = 8,199,237,958.61/143,319.69
  6. Step 6: Final answer
    x = 57,209.43

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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.