Home / 140,916.78-194,460-77,253.18

Finding the Fourth Proportional to 140,916.78, 194,460 and 77,253.18

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Solution

The fourth proportional to 140,916.78, 194,460 and 77,253.18 is: 106,606.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,916.78 : 194,460 = 77,253.18 : x
  2. Step 2: Convert to fraction form
    140,916.78/194,460 = 77,253.18/x
  3. Step 3: Cross multiply
    140,916.78x = 194,460 × 77,253.18
  4. Step 4: Simplify right side
    140,916.78x = 15,022,653,382.80
  5. Step 5: Solve for x
    x = 15,022,653,382.80/140,916.78
  6. Step 6: Final answer
    x = 106,606.56

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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.