Home / 135,686.26-187,308.21-117,464.50

Finding the Fourth Proportional to 135,686.26, 187,308.21 and 117,464.50

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Solution

The fourth proportional to 135,686.26, 187,308.21 and 117,464.50 is: 162,153.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,686.26 : 187,308.21 = 117,464.50 : x
  2. Step 2: Convert to fraction form
    135,686.26/187,308.21 = 117,464.50/x
  3. Step 3: Cross multiply
    135,686.26x = 187,308.21 × 117,464.50
  4. Step 4: Simplify right side
    135,686.26x = 22,002,065,233.55
  5. Step 5: Solve for x
    x = 22,002,065,233.55/135,686.26
  6. Step 6: Final answer
    x = 162,153.97

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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.