Home / 133,218.84-183,839.82-72,788.19

Finding the Fourth Proportional to 133,218.84, 183,839.82 and 72,788.19

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Solution

The fourth proportional to 133,218.84, 183,839.82 and 72,788.19 is: 100,446.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,218.84 : 183,839.82 = 72,788.19 : x
  2. Step 2: Convert to fraction form
    133,218.84/183,839.82 = 72,788.19/x
  3. Step 3: Cross multiply
    133,218.84x = 183,839.82 × 72,788.19
  4. Step 4: Simplify right side
    133,218.84x = 13,381,367,747.73
  5. Step 5: Solve for x
    x = 13,381,367,747.73/133,218.84
  6. Step 6: Final answer
    x = 100,446.51

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1.5x scale

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.