Home / 110,035.67-165,086.51-78,076.31

Finding the Fourth Proportional to 110,035.67, 165,086.51 and 78,076.31

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Solution

The fourth proportional to 110,035.67, 165,086.51 and 78,076.31 is: 117,137.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,035.67 : 165,086.51 = 78,076.31 : x
  2. Step 2: Convert to fraction form
    110,035.67/165,086.51 = 78,076.31/x
  3. Step 3: Cross multiply
    110,035.67x = 165,086.51 × 78,076.31
  4. Step 4: Simplify right side
    110,035.67x = 12,889,344,315.76
  5. Step 5: Solve for x
    x = 12,889,344,315.76/110,035.67
  6. Step 6: Final answer
    x = 117,137.88

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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.