Home / 170,680.89-255,942.09-99,624.05

Finding the Fourth Proportional to 170,680.89, 255,942.09 and 99,624.05

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Solution

The fourth proportional to 170,680.89, 255,942.09 and 99,624.05 is: 149,389.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,680.89 : 255,942.09 = 99,624.05 : x
  2. Step 2: Convert to fraction form
    170,680.89/255,942.09 = 99,624.05/x
  3. Step 3: Cross multiply
    170,680.89x = 255,942.09 × 99,624.05
  4. Step 4: Simplify right side
    170,680.89x = 25,497,986,291.55
  5. Step 5: Solve for x
    x = 25,497,986,291.55/170,680.89
  6. Step 6: Final answer
    x = 149,389.81

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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.