Home / 129,551.81-194,438.48-50,721.39

Finding the Fourth Proportional to 129,551.81, 194,438.48 and 50,721.39

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Solution

The fourth proportional to 129,551.81, 194,438.48 and 50,721.39 is: 76,125.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,551.81 : 194,438.48 = 50,721.39 : x
  2. Step 2: Convert to fraction form
    129,551.81/194,438.48 = 50,721.39/x
  3. Step 3: Cross multiply
    129,551.81x = 194,438.48 × 50,721.39
  4. Step 4: Simplify right side
    129,551.81x = 9,862,189,721.48
  5. Step 5: Solve for x
    x = 9,862,189,721.48/129,551.81
  6. Step 6: Final answer
    x = 76,125.45

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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.