Home / 135,305.20-186,796.24-81,603.76

Finding the Fourth Proportional to 135,305.20, 186,796.24 and 81,603.76

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Solution

The fourth proportional to 135,305.20, 186,796.24 and 81,603.76 is: 112,658.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,305.20 : 186,796.24 = 81,603.76 : x
  2. Step 2: Convert to fraction form
    135,305.20/186,796.24 = 81,603.76/x
  3. Step 3: Cross multiply
    135,305.20x = 186,796.24 × 81,603.76
  4. Step 4: Simplify right side
    135,305.20x = 15,243,275,537.86
  5. Step 5: Solve for x
    x = 15,243,275,537.86/135,305.20
  6. Step 6: Final answer
    x = 112,658.46

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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.