Home / 117,838.41-162,807.48-82,187.61

Finding the Fourth Proportional to 117,838.41, 162,807.48 and 82,187.61

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Solution

The fourth proportional to 117,838.41, 162,807.48 and 82,187.61 is: 113,551.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,838.41 : 162,807.48 = 82,187.61 : x
  2. Step 2: Convert to fraction form
    117,838.41/162,807.48 = 82,187.61/x
  3. Step 3: Cross multiply
    117,838.41x = 162,807.48 × 82,187.61
  4. Step 4: Simplify right side
    117,838.41x = 13,380,757,671.32
  5. Step 5: Solve for x
    x = 13,380,757,671.32/117,838.41
  6. Step 6: Final answer
    x = 113,551.75

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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.