Home / 104,682.14-156,963.72-71,442.48

Finding the Fourth Proportional to 104,682.14, 156,963.72 and 71,442.48

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Solution

The fourth proportional to 104,682.14, 156,963.72 and 71,442.48 is: 107,123.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,682.14 : 156,963.72 = 71,442.48 : x
  2. Step 2: Convert to fraction form
    104,682.14/156,963.72 = 71,442.48/x
  3. Step 3: Cross multiply
    104,682.14x = 156,963.72 × 71,442.48
  4. Step 4: Simplify right side
    104,682.14x = 11,213,877,426.83
  5. Step 5: Solve for x
    x = 11,213,877,426.83/104,682.14
  6. Step 6: Final answer
    x = 107,123.12

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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.