Home / 134,716.05-185,916.33-74,286.45

Finding the Fourth Proportional to 134,716.05, 185,916.33 and 74,286.45

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Solution

The fourth proportional to 134,716.05, 185,916.33 and 74,286.45 is: 102,519.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,716.05 : 185,916.33 = 74,286.45 : x
  2. Step 2: Convert to fraction form
    134,716.05/185,916.33 = 74,286.45/x
  3. Step 3: Cross multiply
    134,716.05x = 185,916.33 × 74,286.45
  4. Step 4: Simplify right side
    134,716.05x = 13,811,064,152.73
  5. Step 5: Solve for x
    x = 13,811,064,152.73/134,716.05
  6. Step 6: Final answer
    x = 102,519.81

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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.