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Finding the Fourth Proportional to 150,155.56, 207,220.98 and 83,087.56

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Solution

The fourth proportional to 150,155.56, 207,220.98 and 83,087.56 is: 114,664.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,155.56 : 207,220.98 = 83,087.56 : x
  2. Step 2: Convert to fraction form
    150,155.56/207,220.98 = 83,087.56/x
  3. Step 3: Cross multiply
    150,155.56x = 207,220.98 × 83,087.56
  4. Step 4: Simplify right side
    150,155.56x = 17,217,485,609.01
  5. Step 5: Solve for x
    x = 17,217,485,609.01/150,155.56
  6. Step 6: Final answer
    x = 114,664.32

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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.