Home / 138,972.96-208,456.56-33,792.48

Finding the Fourth Proportional to 138,972.96, 208,456.56 and 33,792.48

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Solution

The fourth proportional to 138,972.96, 208,456.56 and 33,792.48 is: 50,688.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,972.96 : 208,456.56 = 33,792.48 : x
  2. Step 2: Convert to fraction form
    138,972.96/208,456.56 = 33,792.48/x
  3. Step 3: Cross multiply
    138,972.96x = 208,456.56 × 33,792.48
  4. Step 4: Simplify right side
    138,972.96x = 7,044,264,134.67
  5. Step 5: Solve for x
    x = 7,044,264,134.67/138,972.96
  6. Step 6: Final answer
    x = 50,688.02

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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.