Home / 153,933.29-212,425.91-85,951.43

Finding the Fourth Proportional to 153,933.29, 212,425.91 and 85,951.43

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Solution

The fourth proportional to 153,933.29, 212,425.91 and 85,951.43 is: 118,611.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,933.29 : 212,425.91 = 85,951.43 : x
  2. Step 2: Convert to fraction form
    153,933.29/212,425.91 = 85,951.43/x
  3. Step 3: Cross multiply
    153,933.29x = 212,425.91 × 85,951.43
  4. Step 4: Simplify right side
    153,933.29x = 18,258,309,241.66
  5. Step 5: Solve for x
    x = 18,258,309,241.66/153,933.29
  6. Step 6: Final answer
    x = 118,611.83

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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.