Home / 131,876.64-197,794.80-43,130.88

Finding the Fourth Proportional to 131,876.64, 197,794.80 and 43,130.88

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Solution

The fourth proportional to 131,876.64, 197,794.80 and 43,130.88 is: 64,689.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,876.64 : 197,794.80 = 43,130.88 : x
  2. Step 2: Convert to fraction form
    131,876.64/197,794.80 = 43,130.88/x
  3. Step 3: Cross multiply
    131,876.64x = 197,794.80 × 43,130.88
  4. Step 4: Simplify right side
    131,876.64x = 8,531,063,783.42
  5. Step 5: Solve for x
    x = 8,531,063,783.42/131,876.64
  6. Step 6: Final answer
    x = 64,689.73

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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.