Home / 153,414.18-211,660.83-89,706.87

Finding the Fourth Proportional to 153,414.18, 211,660.83 and 89,706.87

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Solution

The fourth proportional to 153,414.18, 211,660.83 and 89,706.87 is: 123,765.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,414.18 : 211,660.83 = 89,706.87 : x
  2. Step 2: Convert to fraction form
    153,414.18/211,660.83 = 89,706.87/x
  3. Step 3: Cross multiply
    153,414.18x = 211,660.83 × 89,706.87
  4. Step 4: Simplify right side
    153,414.18x = 18,987,430,560.90
  5. Step 5: Solve for x
    x = 18,987,430,560.90/153,414.18
  6. Step 6: Final answer
    x = 123,765.81

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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.