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Finding the Fourth Proportional to 130,463.52, 179,863.92 and 85,051.68

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Solution

The fourth proportional to 130,463.52, 179,863.92 and 85,051.68 is: 117,256.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,463.52 : 179,863.92 = 85,051.68 : x
  2. Step 2: Convert to fraction form
    130,463.52/179,863.92 = 85,051.68/x
  3. Step 3: Cross multiply
    130,463.52x = 179,863.92 × 85,051.68
  4. Step 4: Simplify right side
    130,463.52x = 15,297,728,567.39
  5. Step 5: Solve for x
    x = 15,297,728,567.39/130,463.52
  6. Step 6: Final answer
    x = 117,256.75

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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.