Home / 131,219.16-196,859.98-42,472.68

Finding the Fourth Proportional to 131,219.16, 196,859.98 and 42,472.68

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Solution

The fourth proportional to 131,219.16, 196,859.98 and 42,472.68 is: 63,719.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,219.16 : 196,859.98 = 42,472.68 : x
  2. Step 2: Convert to fraction form
    131,219.16/196,859.98 = 42,472.68/x
  3. Step 3: Cross multiply
    131,219.16x = 196,859.98 × 42,472.68
  4. Step 4: Simplify right side
    131,219.16x = 8,361,170,935.35
  5. Step 5: Solve for x
    x = 8,361,170,935.35/131,219.16
  6. Step 6: Final answer
    x = 63,719.13

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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.