Home / 104,386.49-156,440.15-54,361.57

Finding the Fourth Proportional to 104,386.49, 156,440.15 and 54,361.57

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Solution

The fourth proportional to 104,386.49, 156,440.15 and 54,361.57 is: 81,469.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,386.49 : 156,440.15 = 54,361.57 : x
  2. Step 2: Convert to fraction form
    104,386.49/156,440.15 = 54,361.57/x
  3. Step 3: Cross multiply
    104,386.49x = 156,440.15 × 54,361.57
  4. Step 4: Simplify right side
    104,386.49x = 8,504,331,111.03
  5. Step 5: Solve for x
    x = 8,504,331,111.03/104,386.49
  6. Step 6: Final answer
    x = 81,469.65

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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.