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Finding the Fourth Proportional to 102,850.92, 154,254.78 and 39,649.32

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Solution

The fourth proportional to 102,850.92, 154,254.78 and 39,649.32 is: 59,465.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,850.92 : 154,254.78 = 39,649.32 : x
  2. Step 2: Convert to fraction form
    102,850.92/154,254.78 = 39,649.32/x
  3. Step 3: Cross multiply
    102,850.92x = 154,254.78 × 39,649.32
  4. Step 4: Simplify right side
    102,850.92x = 6,116,097,133.75
  5. Step 5: Solve for x
    x = 6,116,097,133.75/102,850.92
  6. Step 6: Final answer
    x = 59,465.65

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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.