Home / 111,341.70-166,895.91-71,982.18

Finding the Fourth Proportional to 111,341.70, 166,895.91 and 71,982.18

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Solution

The fourth proportional to 111,341.70, 166,895.91 and 71,982.18 is: 107,897.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,341.70 : 166,895.91 = 71,982.18 : x
  2. Step 2: Convert to fraction form
    111,341.70/166,895.91 = 71,982.18/x
  3. Step 3: Cross multiply
    111,341.70x = 166,895.91 × 71,982.18
  4. Step 4: Simplify right side
    111,341.70x = 12,013,531,434.88
  5. Step 5: Solve for x
    x = 12,013,531,434.88/111,341.70
  6. Step 6: Final answer
    x = 107,897.86

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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.