Home / 123,849.14-170,942.40-70,165.78

Finding the Fourth Proportional to 123,849.14, 170,942.40 and 70,165.78

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Solution

The fourth proportional to 123,849.14, 170,942.40 and 70,165.78 is: 96,846.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,849.14 : 170,942.40 = 70,165.78 : x
  2. Step 2: Convert to fraction form
    123,849.14/170,942.40 = 70,165.78/x
  3. Step 3: Cross multiply
    123,849.14x = 170,942.40 × 70,165.78
  4. Step 4: Simplify right side
    123,849.14x = 11,994,306,403.72
  5. Step 5: Solve for x
    x = 11,994,306,403.72/123,849.14
  6. Step 6: Final answer
    x = 96,846.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.