Home / 95,076.31-142,619.07-78,405.90

Finding the Fourth Proportional to 95,076.31, 142,619.07 and 78,405.90

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Solution

The fourth proportional to 95,076.31, 142,619.07 and 78,405.90 is: 117,612.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,076.31 : 142,619.07 = 78,405.90 : x
  2. Step 2: Convert to fraction form
    95,076.31/142,619.07 = 78,405.90/x
  3. Step 3: Cross multiply
    95,076.31x = 142,619.07 × 78,405.90
  4. Step 4: Simplify right side
    95,076.31x = 11,182,176,344.50
  5. Step 5: Solve for x
    x = 11,182,176,344.50/95,076.31
  6. Step 6: Final answer
    x = 117,612.65

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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.