Home / 135,363.78-186,799.76-74,933.16

Finding the Fourth Proportional to 135,363.78, 186,799.76 and 74,933.16

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Solution

The fourth proportional to 135,363.78, 186,799.76 and 74,933.16 is: 103,406.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,363.78 : 186,799.76 = 74,933.16 : x
  2. Step 2: Convert to fraction form
    135,363.78/186,799.76 = 74,933.16/x
  3. Step 3: Cross multiply
    135,363.78x = 186,799.76 × 74,933.16
  4. Step 4: Simplify right side
    135,363.78x = 13,997,496,304.04
  5. Step 5: Solve for x
    x = 13,997,496,304.04/135,363.78
  6. Step 6: Final answer
    x = 103,406.51

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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.