Home / 143,221.76-214,905.36-64,319.84

Finding the Fourth Proportional to 143,221.76, 214,905.36 and 64,319.84

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Solution

The fourth proportional to 143,221.76, 214,905.36 and 64,319.84 is: 96,512.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,221.76 : 214,905.36 = 64,319.84 : x
  2. Step 2: Convert to fraction form
    143,221.76/214,905.36 = 64,319.84/x
  3. Step 3: Cross multiply
    143,221.76x = 214,905.36 × 64,319.84
  4. Step 4: Simplify right side
    143,221.76x = 13,822,678,370.34
  5. Step 5: Solve for x
    x = 13,822,678,370.34/143,221.76
  6. Step 6: Final answer
    x = 96,512.42

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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.