Home / 117,871.15-162,665.72-72,575.27

Finding the Fourth Proportional to 117,871.15, 162,665.72 and 72,575.27

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Solution

The fourth proportional to 117,871.15, 162,665.72 and 72,575.27 is: 100,156.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,871.15 : 162,665.72 = 72,575.27 : x
  2. Step 2: Convert to fraction form
    117,871.15/162,665.72 = 72,575.27/x
  3. Step 3: Cross multiply
    117,871.15x = 162,665.72 × 72,575.27
  4. Step 4: Simplify right side
    117,871.15x = 11,805,508,185.87
  5. Step 5: Solve for x
    x = 11,805,508,185.87/117,871.15
  6. Step 6: Final answer
    x = 100,156.04

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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.