Home / 148,812.62-205,365.04-85,170.92

Finding the Fourth Proportional to 148,812.62, 205,365.04 and 85,170.92

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Solution

The fourth proportional to 148,812.62, 205,365.04 and 85,170.92 is: 117,537.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,812.62 : 205,365.04 = 85,170.92 : x
  2. Step 2: Convert to fraction form
    148,812.62/205,365.04 = 85,170.92/x
  3. Step 3: Cross multiply
    148,812.62x = 205,365.04 × 85,170.92
  4. Step 4: Simplify right side
    148,812.62x = 17,491,128,152.88
  5. Step 5: Solve for x
    x = 17,491,128,152.88/148,812.62
  6. Step 6: Final answer
    x = 117,537.94

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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.