Home / 148,446.62-204,869.30-81,391.58

Finding the Fourth Proportional to 148,446.62, 204,869.30 and 81,391.58

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Solution

The fourth proportional to 148,446.62, 204,869.30 and 81,391.58 is: 112,327.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,446.62 : 204,869.30 = 81,391.58 : x
  2. Step 2: Convert to fraction form
    148,446.62/204,869.30 = 81,391.58/x
  3. Step 3: Cross multiply
    148,446.62x = 204,869.30 × 81,391.58
  4. Step 4: Simplify right side
    148,446.62x = 16,674,636,020.49
  5. Step 5: Solve for x
    x = 16,674,636,020.49/148,446.62
  6. Step 6: Final answer
    x = 112,327.49

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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.