Home / 104,865.81-144,714.60-57,119.04

Finding the Fourth Proportional to 104,865.81, 144,714.60 and 57,119.04

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Solution

The fourth proportional to 104,865.81, 144,714.60 and 57,119.04 is: 78,824.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,865.81 : 144,714.60 = 57,119.04 : x
  2. Step 2: Convert to fraction form
    104,865.81/144,714.60 = 57,119.04/x
  3. Step 3: Cross multiply
    104,865.81x = 144,714.60 × 57,119.04
  4. Step 4: Simplify right side
    104,865.81x = 8,265,959,025.98
  5. Step 5: Solve for x
    x = 8,265,959,025.98/104,865.81
  6. Step 6: Final answer
    x = 78,824.16

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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.