Home / 129,439.31-194,234.43-54,554.81

Finding the Fourth Proportional to 129,439.31, 194,234.43 and 54,554.81

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Solution

The fourth proportional to 129,439.31, 194,234.43 and 54,554.81 is: 81,864.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,439.31 : 194,234.43 = 54,554.81 : x
  2. Step 2: Convert to fraction form
    129,439.31/194,234.43 = 54,554.81/x
  3. Step 3: Cross multiply
    129,439.31x = 194,234.43 × 54,554.81
  4. Step 4: Simplify right side
    129,439.31x = 10,596,422,424.11
  5. Step 5: Solve for x
    x = 10,596,422,424.11/129,439.31
  6. Step 6: Final answer
    x = 81,864.02

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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.