Home / 123,356.20-170,235.66-75,600.31

Finding the Fourth Proportional to 123,356.20, 170,235.66 and 75,600.31

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Solution

The fourth proportional to 123,356.20, 170,235.66 and 75,600.31 is: 104,330.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,356.20 : 170,235.66 = 75,600.31 : x
  2. Step 2: Convert to fraction form
    123,356.20/170,235.66 = 75,600.31/x
  3. Step 3: Cross multiply
    123,356.20x = 170,235.66 × 75,600.31
  4. Step 4: Simplify right side
    123,356.20x = 12,869,868,669.05
  5. Step 5: Solve for x
    x = 12,869,868,669.05/123,356.20
  6. Step 6: Final answer
    x = 104,330.94

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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.