Home / 144,100.96-198,858.54-83,686.44

Finding the Fourth Proportional to 144,100.96, 198,858.54 and 83,686.44

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Solution

The fourth proportional to 144,100.96, 198,858.54 and 83,686.44 is: 115,486.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,100.96 : 198,858.54 = 83,686.44 : x
  2. Step 2: Convert to fraction form
    144,100.96/198,858.54 = 83,686.44/x
  3. Step 3: Cross multiply
    144,100.96x = 198,858.54 × 83,686.44
  4. Step 4: Simplify right side
    144,100.96x = 16,641,763,276.20
  5. Step 5: Solve for x
    x = 16,641,763,276.20/144,100.96
  6. Step 6: Final answer
    x = 115,486.83

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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.