Home / 99,476.84-137,279.79-54,156.12

Finding the Fourth Proportional to 99,476.84, 137,279.79 and 54,156.12

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Solution

The fourth proportional to 99,476.84, 137,279.79 and 54,156.12 is: 74,736.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,476.84 : 137,279.79 = 54,156.12 : x
  2. Step 2: Convert to fraction form
    99,476.84/137,279.79 = 54,156.12/x
  3. Step 3: Cross multiply
    99,476.84x = 137,279.79 × 54,156.12
  4. Step 4: Simplify right side
    99,476.84x = 7,434,541,092.53
  5. Step 5: Solve for x
    x = 7,434,541,092.53/99,476.84
  6. Step 6: Final answer
    x = 74,736.40

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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.