Home / 166,836.40-230,233.18-90,354.28

Finding the Fourth Proportional to 166,836.40, 230,233.18 and 90,354.28

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Solution

The fourth proportional to 166,836.40, 230,233.18 and 90,354.28 is: 124,688.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,836.40 : 230,233.18 = 90,354.28 : x
  2. Step 2: Convert to fraction form
    166,836.40/230,233.18 = 90,354.28/x
  3. Step 3: Cross multiply
    166,836.40x = 230,233.18 × 90,354.28
  4. Step 4: Simplify right side
    166,836.40x = 20,802,553,211.01
  5. Step 5: Solve for x
    x = 20,802,553,211.01/166,836.40
  6. Step 6: Final answer
    x = 124,688.34

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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.