Home / 131,211.30-196,865.55-42,467.70

Finding the Fourth Proportional to 131,211.30, 196,865.55 and 42,467.70

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Solution

The fourth proportional to 131,211.30, 196,865.55 and 42,467.70 is: 63,717.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,211.30 : 196,865.55 = 42,467.70 : x
  2. Step 2: Convert to fraction form
    131,211.30/196,865.55 = 42,467.70/x
  3. Step 3: Cross multiply
    131,211.30x = 196,865.55 × 42,467.70
  4. Step 4: Simplify right side
    131,211.30x = 8,360,427,117.74
  5. Step 5: Solve for x
    x = 8,360,427,117.74/131,211.30
  6. Step 6: Final answer
    x = 63,717.28

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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.