Home / 117,987.40-162,817.35-68,933.57

Finding the Fourth Proportional to 117,987.40, 162,817.35 and 68,933.57

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Solution

The fourth proportional to 117,987.40, 162,817.35 and 68,933.57 is: 95,125.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,987.40 : 162,817.35 = 68,933.57 : x
  2. Step 2: Convert to fraction form
    117,987.40/162,817.35 = 68,933.57/x
  3. Step 3: Cross multiply
    117,987.40x = 162,817.35 × 68,933.57
  4. Step 4: Simplify right side
    117,987.40x = 11,223,580,120.85
  5. Step 5: Solve for x
    x = 11,223,580,120.85/117,987.40
  6. Step 6: Final answer
    x = 95,125.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.