Home / 144,791.04-199,791.36-81,123.84

Finding the Fourth Proportional to 144,791.04, 199,791.36 and 81,123.84

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Solution

The fourth proportional to 144,791.04, 199,791.36 and 81,123.84 is: 111,939.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,791.04 : 199,791.36 = 81,123.84 : x
  2. Step 2: Convert to fraction form
    144,791.04/199,791.36 = 81,123.84/x
  3. Step 3: Cross multiply
    144,791.04x = 199,791.36 × 81,123.84
  4. Step 4: Simplify right side
    144,791.04x = 16,207,842,322.02
  5. Step 5: Solve for x
    x = 16,207,842,322.02/144,791.04
  6. Step 6: Final answer
    x = 111,939.54

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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.