Home / 175,463.28-263,233.80-81,918

Finding the Fourth Proportional to 175,463.28, 263,233.80 and 81,918

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Solution

The fourth proportional to 175,463.28, 263,233.80 and 81,918 is: 122,895.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,463.28 : 263,233.80 = 81,918 : x
  2. Step 2: Convert to fraction form
    175,463.28/263,233.80 = 81,918/x
  3. Step 3: Cross multiply
    175,463.28x = 263,233.80 × 81,918
  4. Step 4: Simplify right side
    175,463.28x = 21,563,586,428.40
  5. Step 5: Solve for x
    x = 21,563,586,428.40/175,463.28
  6. Step 6: Final answer
    x = 122,895.15

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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.