Home / 131,780.86-197,464.30-101,868.42

Finding the Fourth Proportional to 131,780.86, 197,464.30 and 101,868.42

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Solution

The fourth proportional to 131,780.86, 197,464.30 and 101,868.42 is: 152,642.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,780.86 : 197,464.30 = 101,868.42 : x
  2. Step 2: Convert to fraction form
    131,780.86/197,464.30 = 101,868.42/x
  3. Step 3: Cross multiply
    131,780.86x = 197,464.30 × 101,868.42
  4. Step 4: Simplify right side
    131,780.86x = 20,115,376,247.41
  5. Step 5: Solve for x
    x = 20,115,376,247.41/131,780.86
  6. Step 6: Final answer
    x = 152,642.62

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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.