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Finding the Fourth Proportional to 115,512.99, 159,403.24 and 64,524.90

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Solution

The fourth proportional to 115,512.99, 159,403.24 and 64,524.90 is: 89,041.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,512.99 : 159,403.24 = 64,524.90 : x
  2. Step 2: Convert to fraction form
    115,512.99/159,403.24 = 64,524.90/x
  3. Step 3: Cross multiply
    115,512.99x = 159,403.24 × 64,524.90
  4. Step 4: Simplify right side
    115,512.99x = 10,285,478,120.68
  5. Step 5: Solve for x
    x = 10,285,478,120.68/115,512.99
  6. Step 6: Final answer
    x = 89,041.74

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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.