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Finding the Fourth Proportional to 115,245.26, 159,024.02 and 64,245.50

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Solution

The fourth proportional to 115,245.26, 159,024.02 and 64,245.50 is: 88,650.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,245.26 : 159,024.02 = 64,245.50 : x
  2. Step 2: Convert to fraction form
    115,245.26/159,024.02 = 64,245.50/x
  3. Step 3: Cross multiply
    115,245.26x = 159,024.02 × 64,245.50
  4. Step 4: Simplify right side
    115,245.26x = 10,216,577,676.91
  5. Step 5: Solve for x
    x = 10,216,577,676.91/115,245.26
  6. Step 6: Final answer
    x = 88,650.74

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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.