Home / 131,661.08-197,919.34-105,650.36

Finding the Fourth Proportional to 131,661.08, 197,919.34 and 105,650.36

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Solution

The fourth proportional to 131,661.08, 197,919.34 and 105,650.36 is: 158,818.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,661.08 : 197,919.34 = 105,650.36 : x
  2. Step 2: Convert to fraction form
    131,661.08/197,919.34 = 105,650.36/x
  3. Step 3: Cross multiply
    131,661.08x = 197,919.34 × 105,650.36
  4. Step 4: Simplify right side
    131,661.08x = 20,910,249,521.96
  5. Step 5: Solve for x
    x = 20,910,249,521.96/131,661.08
  6. Step 6: Final answer
    x = 158,818.76

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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.