Home / 117,839.21-162,617.80-64,124.21

Finding the Fourth Proportional to 117,839.21, 162,617.80 and 64,124.21

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Solution

The fourth proportional to 117,839.21, 162,617.80 and 64,124.21 is: 88,491.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,839.21 : 162,617.80 = 64,124.21 : x
  2. Step 2: Convert to fraction form
    117,839.21/162,617.80 = 64,124.21/x
  3. Step 3: Cross multiply
    117,839.21x = 162,617.80 × 64,124.21
  4. Step 4: Simplify right side
    117,839.21x = 10,427,737,589.03
  5. Step 5: Solve for x
    x = 10,427,737,589.03/117,839.21
  6. Step 6: Final answer
    x = 88,491.24

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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.