Home / 117,683.28-162,388.80-66,701.88

Finding the Fourth Proportional to 117,683.28, 162,388.80 and 66,701.88

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Solution

The fourth proportional to 117,683.28, 162,388.80 and 66,701.88 is: 92,040.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,683.28 : 162,388.80 = 66,701.88 : x
  2. Step 2: Convert to fraction form
    117,683.28/162,388.80 = 66,701.88/x
  3. Step 3: Cross multiply
    117,683.28x = 162,388.80 × 66,701.88
  4. Step 4: Simplify right side
    117,683.28x = 10,831,638,250.94
  5. Step 5: Solve for x
    x = 10,831,638,250.94/117,683.28
  6. Step 6: Final answer
    x = 92,040.59

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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.