Home / 432,170.90-648,353.55-132,665.30

Finding the Fourth Proportional to 432,170.90, 648,353.55 and 132,665.30

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Solution

The fourth proportional to 432,170.90, 648,353.55 and 132,665.30 is: 199,027.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,170.90 : 648,353.55 = 132,665.30 : x
  2. Step 2: Convert to fraction form
    432,170.90/648,353.55 = 132,665.30/x
  3. Step 3: Cross multiply
    432,170.90x = 648,353.55 × 132,665.30
  4. Step 4: Simplify right side
    432,170.90x = 86,014,018,216.82
  5. Step 5: Solve for x
    x = 86,014,018,216.82/432,170.90
  6. Step 6: Final answer
    x = 199,027.79

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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.