Home / 131,408.10-196,885.35-61,143.30

Finding the Fourth Proportional to 131,408.10, 196,885.35 and 61,143.30

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Solution

The fourth proportional to 131,408.10, 196,885.35 and 61,143.30 is: 91,609.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,408.10 : 196,885.35 = 61,143.30 : x
  2. Step 2: Convert to fraction form
    131,408.10/196,885.35 = 61,143.30/x
  3. Step 3: Cross multiply
    131,408.10x = 196,885.35 × 61,143.30
  4. Step 4: Simplify right side
    131,408.10x = 12,038,220,020.66
  5. Step 5: Solve for x
    x = 12,038,220,020.66/131,408.10
  6. Step 6: Final answer
    x = 91,609.42

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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.