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Finding the Fourth Proportional to 172,836.18, 259,254.28 and 54,516.76

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Solution

The fourth proportional to 172,836.18, 259,254.28 and 54,516.76 is: 81,775.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,836.18 : 259,254.28 = 54,516.76 : x
  2. Step 2: Convert to fraction form
    172,836.18/259,254.28 = 54,516.76/x
  3. Step 3: Cross multiply
    172,836.18x = 259,254.28 × 54,516.76
  4. Step 4: Simplify right side
    172,836.18x = 14,133,703,361.73
  5. Step 5: Solve for x
    x = 14,133,703,361.73/172,836.18
  6. Step 6: Final answer
    x = 81,775.14

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1.5x scale

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.