Home / 116,815.72-161,196.60-71,474.89

Finding the Fourth Proportional to 116,815.72, 161,196.60 and 71,474.89

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Solution

The fourth proportional to 116,815.72, 161,196.60 and 71,474.89 is: 98,629.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,815.72 : 161,196.60 = 71,474.89 : x
  2. Step 2: Convert to fraction form
    116,815.72/161,196.60 = 71,474.89/x
  3. Step 3: Cross multiply
    116,815.72x = 161,196.60 × 71,474.89
  4. Step 4: Simplify right side
    116,815.72x = 11,521,509,253.37
  5. Step 5: Solve for x
    x = 11,521,509,253.37/116,815.72
  6. Step 6: Final answer
    x = 98,629.78

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1.5x scale

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.