Home / 135,021.50-186,328.78-74,596.04

Finding the Fourth Proportional to 135,021.50, 186,328.78 and 74,596.04

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Solution

The fourth proportional to 135,021.50, 186,328.78 and 74,596.04 is: 102,942.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,021.50 : 186,328.78 = 74,596.04 : x
  2. Step 2: Convert to fraction form
    135,021.50/186,328.78 = 74,596.04/x
  3. Step 3: Cross multiply
    135,021.50x = 186,328.78 × 74,596.04
  4. Step 4: Simplify right side
    135,021.50x = 13,899,387,821.41
  5. Step 5: Solve for x
    x = 13,899,387,821.41/135,021.50
  6. Step 6: Final answer
    x = 102,942.04

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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.