Home / 131,519.58-197,707.05-105,508.86

Finding the Fourth Proportional to 131,519.58, 197,707.05 and 105,508.86

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Solution

The fourth proportional to 131,519.58, 197,707.05 and 105,508.86 is: 158,606.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,519.58 : 197,707.05 = 105,508.86 : x
  2. Step 2: Convert to fraction form
    131,519.58/197,707.05 = 105,508.86/x
  3. Step 3: Cross multiply
    131,519.58x = 197,707.05 × 105,508.86
  4. Step 4: Simplify right side
    131,519.58x = 20,859,845,459.46
  5. Step 5: Solve for x
    x = 20,859,845,459.46/131,519.58
  6. Step 6: Final answer
    x = 158,606.39

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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.