Home / 166,439.64-229,686.71-90,988.14

Finding the Fourth Proportional to 166,439.64, 229,686.71 and 90,988.14

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Solution

The fourth proportional to 166,439.64, 229,686.71 and 90,988.14 is: 125,563.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,439.64 : 229,686.71 = 90,988.14 : x
  2. Step 2: Convert to fraction form
    166,439.64/229,686.71 = 90,988.14/x
  3. Step 3: Cross multiply
    166,439.64x = 229,686.71 × 90,988.14
  4. Step 4: Simplify right side
    166,439.64x = 20,898,766,070.68
  5. Step 5: Solve for x
    x = 20,898,766,070.68/166,439.64
  6. Step 6: Final answer
    x = 125,563.63

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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.