Home / 112,013.78-167,890.67-45,371.03

Finding the Fourth Proportional to 112,013.78, 167,890.67 and 45,371.03

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Solution

The fourth proportional to 112,013.78, 167,890.67 and 45,371.03 is: 68,003.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,013.78 : 167,890.67 = 45,371.03 : x
  2. Step 2: Convert to fraction form
    112,013.78/167,890.67 = 45,371.03/x
  3. Step 3: Cross multiply
    112,013.78x = 167,890.67 × 45,371.03
  4. Step 4: Simplify right side
    112,013.78x = 7,617,372,545.90
  5. Step 5: Solve for x
    x = 7,617,372,545.90/112,013.78
  6. Step 6: Final answer
    x = 68,003.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.