Home / 131,986.36-182,093.43-86,688.91

Finding the Fourth Proportional to 131,986.36, 182,093.43 and 86,688.91

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Solution

The fourth proportional to 131,986.36, 182,093.43 and 86,688.91 is: 119,599.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,986.36 : 182,093.43 = 86,688.91 : x
  2. Step 2: Convert to fraction form
    131,986.36/182,093.43 = 86,688.91/x
  3. Step 3: Cross multiply
    131,986.36x = 182,093.43 × 86,688.91
  4. Step 4: Simplify right side
    131,986.36x = 15,785,480,964.86
  5. Step 5: Solve for x
    x = 15,785,480,964.86/131,986.36
  6. Step 6: Final answer
    x = 119,599.34

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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.