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Finding the Fourth Proportional to 104,395.92, 144,006.12 and 66,627.60

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Solution

The fourth proportional to 104,395.92, 144,006.12 and 66,627.60 is: 91,907.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,395.92 : 144,006.12 = 66,627.60 : x
  2. Step 2: Convert to fraction form
    104,395.92/144,006.12 = 66,627.60/x
  3. Step 3: Cross multiply
    104,395.92x = 144,006.12 × 66,627.60
  4. Step 4: Simplify right side
    104,395.92x = 9,594,782,160.91
  5. Step 5: Solve for x
    x = 9,594,782,160.91/104,395.92
  6. Step 6: Final answer
    x = 91,907.64

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1.5x scale

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.