Home / 144,199.04-198,992.60-80,537.76

Finding the Fourth Proportional to 144,199.04, 198,992.60 and 80,537.76

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Solution

The fourth proportional to 144,199.04, 198,992.60 and 80,537.76 is: 111,140.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,199.04 : 198,992.60 = 80,537.76 : x
  2. Step 2: Convert to fraction form
    144,199.04/198,992.60 = 80,537.76/x
  3. Step 3: Cross multiply
    144,199.04x = 198,992.60 × 80,537.76
  4. Step 4: Simplify right side
    144,199.04x = 16,026,418,260.58
  5. Step 5: Solve for x
    x = 16,026,418,260.58/144,199.04
  6. Step 6: Final answer
    x = 111,140.95

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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.