Home / 131,435.20-197,044.80-56,612.80

Finding the Fourth Proportional to 131,435.20, 197,044.80 and 56,612.80

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Solution

The fourth proportional to 131,435.20, 197,044.80 and 56,612.80 is: 84,872.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,435.20 : 197,044.80 = 56,612.80 : x
  2. Step 2: Convert to fraction form
    131,435.20/197,044.80 = 56,612.80/x
  3. Step 3: Cross multiply
    131,435.20x = 197,044.80 × 56,612.80
  4. Step 4: Simplify right side
    131,435.20x = 11,155,257,853.44
  5. Step 5: Solve for x
    x = 11,155,257,853.44/131,435.20
  6. Step 6: Final answer
    x = 84,872.68

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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.