Home / 107,155.42-160,721.79-43,982.20

Finding the Fourth Proportional to 107,155.42, 160,721.79 and 43,982.20

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Solution

The fourth proportional to 107,155.42, 160,721.79 and 43,982.20 is: 65,968.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,155.42 : 160,721.79 = 43,982.20 : x
  2. Step 2: Convert to fraction form
    107,155.42/160,721.79 = 43,982.20/x
  3. Step 3: Cross multiply
    107,155.42x = 160,721.79 × 43,982.20
  4. Step 4: Simplify right side
    107,155.42x = 7,068,897,948.11
  5. Step 5: Solve for x
    x = 7,068,897,948.11/107,155.42
  6. Step 6: Final answer
    x = 65,968.65

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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.