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Finding the Fourth Proportional to 172,836.19, 259,254.29 and 54,516.75

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Solution

The fourth proportional to 172,836.19, 259,254.29 and 54,516.75 is: 81,775.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,836.19 : 259,254.29 = 54,516.75 : x
  2. Step 2: Convert to fraction form
    172,836.19/259,254.29 = 54,516.75/x
  3. Step 3: Cross multiply
    172,836.19x = 259,254.29 × 54,516.75
  4. Step 4: Simplify right side
    172,836.19x = 14,133,701,314.36
  5. Step 5: Solve for x
    x = 14,133,701,314.36/172,836.19
  6. Step 6: Final answer
    x = 81,775.13

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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.