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Finding the Fourth Proportional to 134,160.31, 185,100.80 and 80,425.72

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Solution

The fourth proportional to 134,160.31, 185,100.80 and 80,425.72 is: 110,963.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,160.31 : 185,100.80 = 80,425.72 : x
  2. Step 2: Convert to fraction form
    134,160.31/185,100.80 = 80,425.72/x
  3. Step 3: Cross multiply
    134,160.31x = 185,100.80 × 80,425.72
  4. Step 4: Simplify right side
    134,160.31x = 14,886,863,784.94
  5. Step 5: Solve for x
    x = 14,886,863,784.94/134,160.31
  6. Step 6: Final answer
    x = 110,963.25

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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.