Home / 131,046.04-196,235.54-86,606.20

Finding the Fourth Proportional to 131,046.04, 196,235.54 and 86,606.20

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Solution

The fourth proportional to 131,046.04, 196,235.54 and 86,606.20 is: 129,688.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,046.04 : 196,235.54 = 86,606.20 : x
  2. Step 2: Convert to fraction form
    131,046.04/196,235.54 = 86,606.20/x
  3. Step 3: Cross multiply
    131,046.04x = 196,235.54 × 86,606.20
  4. Step 4: Simplify right side
    131,046.04x = 16,995,214,424.35
  5. Step 5: Solve for x
    x = 16,995,214,424.35/131,046.04
  6. Step 6: Final answer
    x = 129,688.88

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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.