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Finding the Fourth Proportional to 131,174.84, 180,998.68 and 73,806.20

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Solution

The fourth proportional to 131,174.84, 180,998.68 and 73,806.20 is: 101,839.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,174.84 : 180,998.68 = 73,806.20 : x
  2. Step 2: Convert to fraction form
    131,174.84/180,998.68 = 73,806.20/x
  3. Step 3: Cross multiply
    131,174.84x = 180,998.68 × 73,806.20
  4. Step 4: Simplify right side
    131,174.84x = 13,358,824,775.82
  5. Step 5: Solve for x
    x = 13,358,824,775.82/131,174.84
  6. Step 6: Final answer
    x = 101,839.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.