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Finding the Fourth Proportional to 170,634, 255,841.52 and 70,863.12

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Solution

The fourth proportional to 170,634, 255,841.52 and 70,863.12 is: 106,249.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,634 : 255,841.52 = 70,863.12 : x
  2. Step 2: Convert to fraction form
    170,634/255,841.52 = 70,863.12/x
  3. Step 3: Cross multiply
    170,634x = 255,841.52 × 70,863.12
  4. Step 4: Simplify right side
    170,634x = 18,129,728,332.74
  5. Step 5: Solve for x
    x = 18,129,728,332.74/170,634
  6. Step 6: Final answer
    x = 106,249.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.