Home / 111,919.88-167,886.40-31,951.70

Finding the Fourth Proportional to 111,919.88, 167,886.40 and 31,951.70

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Solution

The fourth proportional to 111,919.88, 167,886.40 and 31,951.70 is: 47,929.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,919.88 : 167,886.40 = 31,951.70 : x
  2. Step 2: Convert to fraction form
    111,919.88/167,886.40 = 31,951.70/x
  3. Step 3: Cross multiply
    111,919.88x = 167,886.40 × 31,951.70
  4. Step 4: Simplify right side
    111,919.88x = 5,364,256,275.46
  5. Step 5: Solve for x
    x = 5,364,256,275.46/111,919.88
  6. Step 6: Final answer
    x = 47,929.43

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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.