Home / 166,420.62-229,660.28-89,939.66

Finding the Fourth Proportional to 166,420.62, 229,660.28 and 89,939.66

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Solution

The fourth proportional to 166,420.62, 229,660.28 and 89,939.66 is: 124,116.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,420.62 : 229,660.28 = 89,939.66 : x
  2. Step 2: Convert to fraction form
    166,420.62/229,660.28 = 89,939.66/x
  3. Step 3: Cross multiply
    166,420.62x = 229,660.28 × 89,939.66
  4. Step 4: Simplify right side
    166,420.62x = 20,655,567,498.70
  5. Step 5: Solve for x
    x = 20,655,567,498.70/166,420.62
  6. Step 6: Final answer
    x = 124,116.64

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1.5x scale

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.