Home / 116,869.76-161,244.38-71,500.45

Finding the Fourth Proportional to 116,869.76, 161,244.38 and 71,500.45

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Solution

The fourth proportional to 116,869.76, 161,244.38 and 71,500.45 is: 98,648.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,869.76 : 161,244.38 = 71,500.45 : x
  2. Step 2: Convert to fraction form
    116,869.76/161,244.38 = 71,500.45/x
  3. Step 3: Cross multiply
    116,869.76x = 161,244.38 × 71,500.45
  4. Step 4: Simplify right side
    116,869.76x = 11,529,045,729.97
  5. Step 5: Solve for x
    x = 11,529,045,729.97/116,869.76
  6. Step 6: Final answer
    x = 98,648.66

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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.