Home / 138,585.01-191,296.47-81,996.25

Finding the Fourth Proportional to 138,585.01, 191,296.47 and 81,996.25

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Solution

The fourth proportional to 138,585.01, 191,296.47 and 81,996.25 is: 113,183.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,585.01 : 191,296.47 = 81,996.25 : x
  2. Step 2: Convert to fraction form
    138,585.01/191,296.47 = 81,996.25/x
  3. Step 3: Cross multiply
    138,585.01x = 191,296.47 × 81,996.25
  4. Step 4: Simplify right side
    138,585.01x = 15,685,593,178.24
  5. Step 5: Solve for x
    x = 15,685,593,178.24/138,585.01
  6. Step 6: Final answer
    x = 113,183.91

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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.