Home / 107,986.87-162,029.53-55,433.29

Finding the Fourth Proportional to 107,986.87, 162,029.53 and 55,433.29

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Solution

The fourth proportional to 107,986.87, 162,029.53 and 55,433.29 is: 83,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,986.87 : 162,029.53 = 55,433.29 : x
  2. Step 2: Convert to fraction form
    107,986.87/162,029.53 = 55,433.29/x
  3. Step 3: Cross multiply
    107,986.87x = 162,029.53 × 55,433.29
  4. Step 4: Simplify right side
    107,986.87x = 8,981,828,976.32
  5. Step 5: Solve for x
    x = 8,981,828,976.32/107,986.87
  6. Step 6: Final answer
    x = 83,175.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.