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Finding the Fourth Proportional to 96,885.84, 144,903.76 and 86,286.96

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Solution

The fourth proportional to 96,885.84, 144,903.76 and 86,286.96 is: 129,051.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,885.84 : 144,903.76 = 86,286.96 : x
  2. Step 2: Convert to fraction form
    96,885.84/144,903.76 = 86,286.96/x
  3. Step 3: Cross multiply
    96,885.84x = 144,903.76 × 86,286.96
  4. Step 4: Simplify right side
    96,885.84x = 12,503,304,942.97
  5. Step 5: Solve for x
    x = 12,503,304,942.97/96,885.84
  6. Step 6: Final answer
    x = 129,051.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.