Home / 107,284.40-161,032.52-80,537.39

Finding the Fourth Proportional to 107,284.40, 161,032.52 and 80,537.39

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Solution

The fourth proportional to 107,284.40, 161,032.52 and 80,537.39 is: 120,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,284.40 : 161,032.52 = 80,537.39 : x
  2. Step 2: Convert to fraction form
    107,284.40/161,032.52 = 80,537.39/x
  3. Step 3: Cross multiply
    107,284.40x = 161,032.52 × 80,537.39
  4. Step 4: Simplify right side
    107,284.40x = 12,969,138,865.98
  5. Step 5: Solve for x
    x = 12,969,138,865.98/107,284.40
  6. Step 6: Final answer
    x = 120,885.60

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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.