Home / 135,150.05-186,492.78-74,710.95

Finding the Fourth Proportional to 135,150.05, 186,492.78 and 74,710.95

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Solution

The fourth proportional to 135,150.05, 186,492.78 and 74,710.95 is: 103,093.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,150.05 : 186,492.78 = 74,710.95 : x
  2. Step 2: Convert to fraction form
    135,150.05/186,492.78 = 74,710.95/x
  3. Step 3: Cross multiply
    135,150.05x = 186,492.78 × 74,710.95
  4. Step 4: Simplify right side
    135,150.05x = 13,933,052,761.94
  5. Step 5: Solve for x
    x = 13,933,052,761.94/135,150.05
  6. Step 6: Final answer
    x = 103,093.22

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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.