Home / 107,987.37-162,030.28-55,433.79

Finding the Fourth Proportional to 107,987.37, 162,030.28 and 55,433.79

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Solution

The fourth proportional to 107,987.37, 162,030.28 and 55,433.79 is: 83,175.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,987.37 : 162,030.28 = 55,433.79 : x
  2. Step 2: Convert to fraction form
    107,987.37/162,030.28 = 55,433.79/x
  3. Step 3: Cross multiply
    107,987.37x = 162,030.28 × 55,433.79
  4. Step 4: Simplify right side
    107,987.37x = 8,981,952,515.16
  5. Step 5: Solve for x
    x = 8,981,952,515.16/107,987.37
  6. Step 6: Final answer
    x = 83,175.95

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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.