Home / 102,954.20-154,316.10-43,779.80

Finding the Fourth Proportional to 102,954.20, 154,316.10 and 43,779.80

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Solution

The fourth proportional to 102,954.20, 154,316.10 and 43,779.80 is: 65,620.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,954.20 : 154,316.10 = 43,779.80 : x
  2. Step 2: Convert to fraction form
    102,954.20/154,316.10 = 43,779.80/x
  3. Step 3: Cross multiply
    102,954.20x = 154,316.10 × 43,779.80
  4. Step 4: Simplify right side
    102,954.20x = 6,755,927,994.78
  5. Step 5: Solve for x
    x = 6,755,927,994.78/102,954.20
  6. Step 6: Final answer
    x = 65,620.71

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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.