Home / 170,942.70-256,471.02-107,689.80

Finding the Fourth Proportional to 170,942.70, 256,471.02 and 107,689.80

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Solution

The fourth proportional to 170,942.70, 256,471.02 and 107,689.80 is: 161,570.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,942.70 : 256,471.02 = 107,689.80 : x
  2. Step 2: Convert to fraction form
    170,942.70/256,471.02 = 107,689.80/x
  3. Step 3: Cross multiply
    170,942.70x = 256,471.02 × 107,689.80
  4. Step 4: Simplify right side
    170,942.70x = 27,619,312,849.60
  5. Step 5: Solve for x
    x = 27,619,312,849.60/170,942.70
  6. Step 6: Final answer
    x = 161,570.59

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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.