Home / 135,245.04-186,576-87,514.08

Finding the Fourth Proportional to 135,245.04, 186,576 and 87,514.08

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Solution

The fourth proportional to 135,245.04, 186,576 and 87,514.08 is: 120,729.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,245.04 : 186,576 = 87,514.08 : x
  2. Step 2: Convert to fraction form
    135,245.04/186,576 = 87,514.08/x
  3. Step 3: Cross multiply
    135,245.04x = 186,576 × 87,514.08
  4. Step 4: Simplify right side
    135,245.04x = 16,328,026,990.08
  5. Step 5: Solve for x
    x = 16,328,026,990.08/135,245.04
  6. Step 6: Final answer
    x = 120,729.21

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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.