Home / 148,265.45-204,529.29-90,918.21

Finding the Fourth Proportional to 148,265.45, 204,529.29 and 90,918.21

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Solution

The fourth proportional to 148,265.45, 204,529.29 and 90,918.21 is: 125,419.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,265.45 : 204,529.29 = 90,918.21 : x
  2. Step 2: Convert to fraction form
    148,265.45/204,529.29 = 90,918.21/x
  3. Step 3: Cross multiply
    148,265.45x = 204,529.29 × 90,918.21
  4. Step 4: Simplify right side
    148,265.45x = 18,595,436,939.37
  5. Step 5: Solve for x
    x = 18,595,436,939.37/148,265.45
  6. Step 6: Final answer
    x = 125,419.89

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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.