Home / 117,872.29-162,667.28-72,576.41

Finding the Fourth Proportional to 117,872.29, 162,667.28 and 72,576.41

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Solution

The fourth proportional to 117,872.29, 162,667.28 and 72,576.41 is: 100,157.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,872.29 : 162,667.28 = 72,576.41 : x
  2. Step 2: Convert to fraction form
    117,872.29/162,667.28 = 72,576.41/x
  3. Step 3: Cross multiply
    117,872.29x = 162,667.28 × 72,576.41
  4. Step 4: Simplify right side
    117,872.29x = 11,805,806,574.97
  5. Step 5: Solve for x
    x = 11,805,806,574.97/117,872.29
  6. Step 6: Final answer
    x = 100,157.61

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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.