Home / 107,618.61-161,428.07-51,445.52

Finding the Fourth Proportional to 107,618.61, 161,428.07 and 51,445.52

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Solution

The fourth proportional to 107,618.61, 161,428.07 and 51,445.52 is: 77,168.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,618.61 : 161,428.07 = 51,445.52 : x
  2. Step 2: Convert to fraction form
    107,618.61/161,428.07 = 51,445.52/x
  3. Step 3: Cross multiply
    107,618.61x = 161,428.07 × 51,445.52
  4. Step 4: Simplify right side
    107,618.61x = 8,304,749,939.38
  5. Step 5: Solve for x
    x = 8,304,749,939.38/107,618.61
  6. Step 6: Final answer
    x = 77,168.34

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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.