Home / 131,213.60-196,820.40-36,443.60

Finding the Fourth Proportional to 131,213.60, 196,820.40 and 36,443.60

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Solution

The fourth proportional to 131,213.60, 196,820.40 and 36,443.60 is: 54,665.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,213.60 : 196,820.40 = 36,443.60 : x
  2. Step 2: Convert to fraction form
    131,213.60/196,820.40 = 36,443.60/x
  3. Step 3: Cross multiply
    131,213.60x = 196,820.40 × 36,443.60
  4. Step 4: Simplify right side
    131,213.60x = 7,172,843,929.44
  5. Step 5: Solve for x
    x = 7,172,843,929.44/131,213.60
  6. Step 6: Final answer
    x = 54,665.40

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1.5x scale

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.