Home / 135,144.27-186,499.67-74,714.49

Finding the Fourth Proportional to 135,144.27, 186,499.67 and 74,714.49

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Solution

The fourth proportional to 135,144.27, 186,499.67 and 74,714.49 is: 103,106.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,144.27 : 186,499.67 = 74,714.49 : x
  2. Step 2: Convert to fraction form
    135,144.27/186,499.67 = 74,714.49/x
  3. Step 3: Cross multiply
    135,144.27x = 186,499.67 × 74,714.49
  4. Step 4: Simplify right side
    135,144.27x = 13,934,227,355.65
  5. Step 5: Solve for x
    x = 13,934,227,355.65/135,144.27
  6. Step 6: Final answer
    x = 103,106.31

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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.