Home / 129,679.36-194,522.64-36,185.04

Finding the Fourth Proportional to 129,679.36, 194,522.64 and 36,185.04

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Solution

The fourth proportional to 129,679.36, 194,522.64 and 36,185.04 is: 54,278.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,679.36 : 194,522.64 = 36,185.04 : x
  2. Step 2: Convert to fraction form
    129,679.36/194,522.64 = 36,185.04/x
  3. Step 3: Cross multiply
    129,679.36x = 194,522.64 × 36,185.04
  4. Step 4: Simplify right side
    129,679.36x = 7,038,809,509.31
  5. Step 5: Solve for x
    x = 7,038,809,509.31/129,679.36
  6. Step 6: Final answer
    x = 54,278.56

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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.