Home / 115,564.73-159,391.53-99,458.82

Finding the Fourth Proportional to 115,564.73, 159,391.53 and 99,458.82

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Solution

The fourth proportional to 115,564.73, 159,391.53 and 99,458.82 is: 137,177.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,564.73 : 159,391.53 = 99,458.82 : x
  2. Step 2: Convert to fraction form
    115,564.73/159,391.53 = 99,458.82/x
  3. Step 3: Cross multiply
    115,564.73x = 159,391.53 × 99,458.82
  4. Step 4: Simplify right side
    115,564.73x = 15,852,893,491.79
  5. Step 5: Solve for x
    x = 15,852,893,491.79/115,564.73
  6. Step 6: Final answer
    x = 137,177.62

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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.