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Finding the Fourth Proportional to 169,143.68, 253,696.08 and 56,819.36

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Solution

The fourth proportional to 169,143.68, 253,696.08 and 56,819.36 is: 85,222.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,143.68 : 253,696.08 = 56,819.36 : x
  2. Step 2: Convert to fraction form
    169,143.68/253,696.08 = 56,819.36/x
  3. Step 3: Cross multiply
    169,143.68x = 253,696.08 × 56,819.36
  4. Step 4: Simplify right side
    169,143.68x = 14,414,848,900.11
  5. Step 5: Solve for x
    x = 14,414,848,900.11/169,143.68
  6. Step 6: Final answer
    x = 85,222.51

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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.