Home / 117,872.16-162,667.11-72,576.28

Finding the Fourth Proportional to 117,872.16, 162,667.11 and 72,576.28

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Solution

The fourth proportional to 117,872.16, 162,667.11 and 72,576.28 is: 100,157.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,872.16 : 162,667.11 = 72,576.28 : x
  2. Step 2: Convert to fraction form
    117,872.16/162,667.11 = 72,576.28/x
  3. Step 3: Cross multiply
    117,872.16x = 162,667.11 × 72,576.28
  4. Step 4: Simplify right side
    117,872.16x = 11,805,772,545.93
  5. Step 5: Solve for x
    x = 11,805,772,545.93/117,872.16
  6. Step 6: Final answer
    x = 100,157.43

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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.