Home / 132,029.80-197,775.90-81,956.20

Finding the Fourth Proportional to 132,029.80, 197,775.90 and 81,956.20

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Solution

The fourth proportional to 132,029.80, 197,775.90 and 81,956.20 is: 122,767.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,029.80 : 197,775.90 = 81,956.20 : x
  2. Step 2: Convert to fraction form
    132,029.80/197,775.90 = 81,956.20/x
  3. Step 3: Cross multiply
    132,029.80x = 197,775.90 × 81,956.20
  4. Step 4: Simplify right side
    132,029.80x = 16,208,961,215.58
  5. Step 5: Solve for x
    x = 16,208,961,215.58/132,029.80
  6. Step 6: Final answer
    x = 122,767.45

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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.