Home / 135,028.41-186,337.42-74,599.17

Finding the Fourth Proportional to 135,028.41, 186,337.42 and 74,599.17

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Solution

The fourth proportional to 135,028.41, 186,337.42 and 74,599.17 is: 102,945.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,028.41 : 186,337.42 = 74,599.17 : x
  2. Step 2: Convert to fraction form
    135,028.41/186,337.42 = 74,599.17/x
  3. Step 3: Cross multiply
    135,028.41x = 186,337.42 × 74,599.17
  4. Step 4: Simplify right side
    135,028.41x = 13,900,616,871.94
  5. Step 5: Solve for x
    x = 13,900,616,871.94/135,028.41
  6. Step 6: Final answer
    x = 102,945.87

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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.