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Finding the Fourth Proportional to 163,771.64, 245,660.50 and 51,449.74

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Solution

The fourth proportional to 163,771.64, 245,660.50 and 51,449.74 is: 77,175.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,771.64 : 245,660.50 = 51,449.74 : x
  2. Step 2: Convert to fraction form
    163,771.64/245,660.50 = 51,449.74/x
  3. Step 3: Cross multiply
    163,771.64x = 245,660.50 × 51,449.74
  4. Step 4: Simplify right side
    163,771.64x = 12,639,168,853.27
  5. Step 5: Solve for x
    x = 12,639,168,853.27/163,771.64
  6. Step 6: Final answer
    x = 77,175.57

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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.