Home / 107,814.30-161,721.45-92,262.30

Finding the Fourth Proportional to 107,814.30, 161,721.45 and 92,262.30

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Solution

The fourth proportional to 107,814.30, 161,721.45 and 92,262.30 is: 138,393.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,814.30 : 161,721.45 = 92,262.30 : x
  2. Step 2: Convert to fraction form
    107,814.30/161,721.45 = 92,262.30/x
  3. Step 3: Cross multiply
    107,814.30x = 161,721.45 × 92,262.30
  4. Step 4: Simplify right side
    107,814.30x = 14,920,792,936.34
  5. Step 5: Solve for x
    x = 14,920,792,936.34/107,814.30
  6. Step 6: Final answer
    x = 138,393.45

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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.