Home / 347,822.90-521,665.95-111,101.78

Finding the Fourth Proportional to 347,822.90, 521,665.95 and 111,101.78

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Solution

The fourth proportional to 347,822.90, 521,665.95 and 111,101.78 is: 166,630.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,822.90 : 521,665.95 = 111,101.78 : x
  2. Step 2: Convert to fraction form
    347,822.90/521,665.95 = 111,101.78/x
  3. Step 3: Cross multiply
    347,822.90x = 521,665.95 × 111,101.78
  4. Step 4: Simplify right side
    347,822.90x = 57,958,015,610.39
  5. Step 5: Solve for x
    x = 57,958,015,610.39/347,822.90
  6. Step 6: Final answer
    x = 166,630.82

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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.