Home / 104,021.76-155,972.43-40,767.96

Finding the Fourth Proportional to 104,021.76, 155,972.43 and 40,767.96

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Solution

The fourth proportional to 104,021.76, 155,972.43 and 40,767.96 is: 61,128.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,021.76 : 155,972.43 = 40,767.96 : x
  2. Step 2: Convert to fraction form
    104,021.76/155,972.43 = 40,767.96/x
  3. Step 3: Cross multiply
    104,021.76x = 155,972.43 × 40,767.96
  4. Step 4: Simplify right side
    104,021.76x = 6,358,677,787.34
  5. Step 5: Solve for x
    x = 6,358,677,787.34/104,021.76
  6. Step 6: Final answer
    x = 61,128.34

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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.