Home / 131,508.40-197,311.20-52,679.20

Finding the Fourth Proportional to 131,508.40, 197,311.20 and 52,679.20

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Solution

The fourth proportional to 131,508.40, 197,311.20 and 52,679.20 is: 79,038.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,508.40 : 197,311.20 = 52,679.20 : x
  2. Step 2: Convert to fraction form
    131,508.40/197,311.20 = 52,679.20/x
  3. Step 3: Cross multiply
    131,508.40x = 197,311.20 × 52,679.20
  4. Step 4: Simplify right side
    131,508.40x = 10,394,196,167.04
  5. Step 5: Solve for x
    x = 10,394,196,167.04/131,508.40
  6. Step 6: Final answer
    x = 79,038.27

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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.