Home / 129,869.51-194,840.10-54,950.18

Finding the Fourth Proportional to 129,869.51, 194,840.10 and 54,950.18

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Solution

The fourth proportional to 129,869.51, 194,840.10 and 54,950.18 is: 82,440.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,869.51 : 194,840.10 = 54,950.18 : x
  2. Step 2: Convert to fraction form
    129,869.51/194,840.10 = 54,950.18/x
  3. Step 3: Cross multiply
    129,869.51x = 194,840.10 × 54,950.18
  4. Step 4: Simplify right side
    129,869.51x = 10,706,497,592.02
  5. Step 5: Solve for x
    x = 10,706,497,592.02/129,869.51
  6. Step 6: Final answer
    x = 82,440.43

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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.