Home / 134,186.36-185,194.68-86,578.21

Finding the Fourth Proportional to 134,186.36, 185,194.68 and 86,578.21

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Solution

The fourth proportional to 134,186.36, 185,194.68 and 86,578.21 is: 119,489.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,186.36 : 185,194.68 = 86,578.21 : x
  2. Step 2: Convert to fraction form
    134,186.36/185,194.68 = 86,578.21/x
  3. Step 3: Cross multiply
    134,186.36x = 185,194.68 × 86,578.21
  4. Step 4: Simplify right side
    134,186.36x = 16,033,823,432.94
  5. Step 5: Solve for x
    x = 16,033,823,432.94/134,186.36
  6. Step 6: Final answer
    x = 119,489.22

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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.