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Finding the Fourth Proportional to 144,637.92, 199,594.80 and 80,103.60

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Solution

The fourth proportional to 144,637.92, 199,594.80 and 80,103.60 is: 110,539.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,637.92 : 199,594.80 = 80,103.60 : x
  2. Step 2: Convert to fraction form
    144,637.92/199,594.80 = 80,103.60/x
  3. Step 3: Cross multiply
    144,637.92x = 199,594.80 × 80,103.60
  4. Step 4: Simplify right side
    144,637.92x = 15,988,262,021.28
  5. Step 5: Solve for x
    x = 15,988,262,021.28/144,637.92
  6. Step 6: Final answer
    x = 110,539.91

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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.