Home / 117,742.28-162,436.41-66,744.23

Finding the Fourth Proportional to 117,742.28, 162,436.41 and 66,744.23

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Solution

The fourth proportional to 117,742.28, 162,436.41 and 66,744.23 is: 92,079.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,742.28 : 162,436.41 = 66,744.23 : x
  2. Step 2: Convert to fraction form
    117,742.28/162,436.41 = 66,744.23/x
  3. Step 3: Cross multiply
    117,742.28x = 162,436.41 × 66,744.23
  4. Step 4: Simplify right side
    117,742.28x = 10,841,692,297.23
  5. Step 5: Solve for x
    x = 10,841,692,297.23/117,742.28
  6. Step 6: Final answer
    x = 92,079.86

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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.