Home / 169,939.36-234,527.78-112,479.70

Finding the Fourth Proportional to 169,939.36, 234,527.78 and 112,479.70

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Solution

The fourth proportional to 169,939.36, 234,527.78 and 112,479.70 is: 155,229.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,939.36 : 234,527.78 = 112,479.70 : x
  2. Step 2: Convert to fraction form
    169,939.36/234,527.78 = 112,479.70/x
  3. Step 3: Cross multiply
    169,939.36x = 234,527.78 × 112,479.70
  4. Step 4: Simplify right side
    169,939.36x = 26,379,614,336.07
  5. Step 5: Solve for x
    x = 26,379,614,336.07/169,939.36
  6. Step 6: Final answer
    x = 155,229.57

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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.