Home / 148,425.64-204,819.78-81,344.68

Finding the Fourth Proportional to 148,425.64, 204,819.78 and 81,344.68

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Solution

The fourth proportional to 148,425.64, 204,819.78 and 81,344.68 is: 112,251.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,425.64 : 204,819.78 = 81,344.68 : x
  2. Step 2: Convert to fraction form
    148,425.64/204,819.78 = 81,344.68/x
  3. Step 3: Cross multiply
    148,425.64x = 204,819.78 × 81,344.68
  4. Step 4: Simplify right side
    148,425.64x = 16,660,999,461.77
  5. Step 5: Solve for x
    x = 16,660,999,461.77/148,425.64
  6. Step 6: Final answer
    x = 112,251.49

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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.