Home / 151,812.70-209,519.99-88,150.51

Finding the Fourth Proportional to 151,812.70, 209,519.99 and 88,150.51

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Solution

The fourth proportional to 151,812.70, 209,519.99 and 88,150.51 is: 121,658.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,812.70 : 209,519.99 = 88,150.51 : x
  2. Step 2: Convert to fraction form
    151,812.70/209,519.99 = 88,150.51/x
  3. Step 3: Cross multiply
    151,812.70x = 209,519.99 × 88,150.51
  4. Step 4: Simplify right side
    151,812.70x = 18,469,293,532.94
  5. Step 5: Solve for x
    x = 18,469,293,532.94/151,812.70
  6. Step 6: Final answer
    x = 121,658.42

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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.