Home / 153,214.20-211,425.66-85,229.82

Finding the Fourth Proportional to 153,214.20, 211,425.66 and 85,229.82

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Solution

The fourth proportional to 153,214.20, 211,425.66 and 85,229.82 is: 117,611.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,214.20 : 211,425.66 = 85,229.82 : x
  2. Step 2: Convert to fraction form
    153,214.20/211,425.66 = 85,229.82/x
  3. Step 3: Cross multiply
    153,214.20x = 211,425.66 × 85,229.82
  4. Step 4: Simplify right side
    153,214.20x = 18,019,770,945.18
  5. Step 5: Solve for x
    x = 18,019,770,945.18/153,214.20
  6. Step 6: Final answer
    x = 117,611.62

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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.