Home / 166,389.18-229,664.20-98,429.78

Finding the Fourth Proportional to 166,389.18, 229,664.20 and 98,429.78

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Solution

The fourth proportional to 166,389.18, 229,664.20 and 98,429.78 is: 135,860.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,389.18 : 229,664.20 = 98,429.78 : x
  2. Step 2: Convert to fraction form
    166,389.18/229,664.20 = 98,429.78/x
  3. Step 3: Cross multiply
    166,389.18x = 229,664.20 × 98,429.78
  4. Step 4: Simplify right side
    166,389.18x = 22,605,796,679.88
  5. Step 5: Solve for x
    x = 22,605,796,679.88/166,389.18
  6. Step 6: Final answer
    x = 135,860.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.