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Finding the Fourth Proportional to 106,866.60, 160,530.30 and 102,949.80

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Solution

The fourth proportional to 106,866.60, 160,530.30 and 102,949.80 is: 154,646.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,866.60 : 160,530.30 = 102,949.80 : x
  2. Step 2: Convert to fraction form
    106,866.60/160,530.30 = 102,949.80/x
  3. Step 3: Cross multiply
    106,866.60x = 160,530.30 × 102,949.80
  4. Step 4: Simplify right side
    106,866.60x = 16,526,562,278.94
  5. Step 5: Solve for x
    x = 16,526,562,278.94/106,866.60
  6. Step 6: Final answer
    x = 154,646.66

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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.