Home / 135,167.06-186,442.67-86,692.21

Finding the Fourth Proportional to 135,167.06, 186,442.67 and 86,692.21

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Solution

The fourth proportional to 135,167.06, 186,442.67 and 86,692.21 is: 119,578.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,167.06 : 186,442.67 = 86,692.21 : x
  2. Step 2: Convert to fraction form
    135,167.06/186,442.67 = 86,692.21/x
  3. Step 3: Cross multiply
    135,167.06x = 186,442.67 × 86,692.21
  4. Step 4: Simplify right side
    135,167.06x = 16,163,126,363.58
  5. Step 5: Solve for x
    x = 16,163,126,363.58/135,167.06
  6. Step 6: Final answer
    x = 119,578.88

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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.