Home / 134,784.24-185,919.83-86,369.87

Finding the Fourth Proportional to 134,784.24, 185,919.83 and 86,369.87

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Solution

The fourth proportional to 134,784.24, 185,919.83 and 86,369.87 is: 119,137.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,784.24 : 185,919.83 = 86,369.87 : x
  2. Step 2: Convert to fraction form
    134,784.24/185,919.83 = 86,369.87/x
  3. Step 3: Cross multiply
    134,784.24x = 185,919.83 × 86,369.87
  4. Step 4: Simplify right side
    134,784.24x = 16,057,871,624.38
  5. Step 5: Solve for x
    x = 16,057,871,624.38/134,784.24
  6. Step 6: Final answer
    x = 119,137.61

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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.