Home / 135,025.51-186,338.97-74,600.05

Finding the Fourth Proportional to 135,025.51, 186,338.97 and 74,600.05

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Solution

The fourth proportional to 135,025.51, 186,338.97 and 74,600.05 is: 102,950.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,025.51 : 186,338.97 = 74,600.05 : x
  2. Step 2: Convert to fraction form
    135,025.51/186,338.97 = 74,600.05/x
  3. Step 3: Cross multiply
    135,025.51x = 186,338.97 × 74,600.05
  4. Step 4: Simplify right side
    135,025.51x = 13,900,896,105.95
  5. Step 5: Solve for x
    x = 13,900,896,105.95/135,025.51
  6. Step 6: Final answer
    x = 102,950.15

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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.