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Finding the Fourth Proportional to 115,841.32, 159,823.86 and 64,846.56

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Solution

The fourth proportional to 115,841.32, 159,823.86 and 64,846.56 is: 89,467.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,841.32 : 159,823.86 = 64,846.56 : x
  2. Step 2: Convert to fraction form
    115,841.32/159,823.86 = 64,846.56/x
  3. Step 3: Cross multiply
    115,841.32x = 159,823.86 × 64,846.56
  4. Step 4: Simplify right side
    115,841.32x = 10,364,027,526.92
  5. Step 5: Solve for x
    x = 10,364,027,526.92/115,841.32
  6. Step 6: Final answer
    x = 89,467.45

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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.