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Finding the Fourth Proportional to 172,014.93, 258,022.14 and 112,836.54

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Solution

The fourth proportional to 172,014.93, 258,022.14 and 112,836.54 is: 169,254.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,014.93 : 258,022.14 = 112,836.54 : x
  2. Step 2: Convert to fraction form
    172,014.93/258,022.14 = 112,836.54/x
  3. Step 3: Cross multiply
    172,014.93x = 258,022.14 × 112,836.54
  4. Step 4: Simplify right side
    172,014.93x = 29,114,325,521.00
  5. Step 5: Solve for x
    x = 29,114,325,521.00/172,014.93
  6. Step 6: Final answer
    x = 169,254.64

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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.