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Finding the Fourth Proportional to 163,461.51, 225,702.86 and 131,771.88

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Solution

The fourth proportional to 163,461.51, 225,702.86 and 131,771.88 is: 181,946.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,461.51 : 225,702.86 = 131,771.88 : x
  2. Step 2: Convert to fraction form
    163,461.51/225,702.86 = 131,771.88/x
  3. Step 3: Cross multiply
    163,461.51x = 225,702.86 × 131,771.88
  4. Step 4: Simplify right side
    163,461.51x = 29,741,289,524.72
  5. Step 5: Solve for x
    x = 29,741,289,524.72/163,461.51
  6. Step 6: Final answer
    x = 181,946.74

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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.