Home / 135,110.16-186,442.16-74,677.41

Finding the Fourth Proportional to 135,110.16, 186,442.16 and 74,677.41

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Solution

The fourth proportional to 135,110.16, 186,442.16 and 74,677.41 is: 103,049.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,110.16 : 186,442.16 = 74,677.41 : x
  2. Step 2: Convert to fraction form
    135,110.16/186,442.16 = 74,677.41/x
  3. Step 3: Cross multiply
    135,110.16x = 186,442.16 × 74,677.41
  4. Step 4: Simplify right side
    135,110.16x = 13,923,017,250.22
  5. Step 5: Solve for x
    x = 13,923,017,250.22/135,110.16
  6. Step 6: Final answer
    x = 103,049.37

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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.