Home / 117,479.36-162,121.74-67,178.36

Finding the Fourth Proportional to 117,479.36, 162,121.74 and 67,178.36

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Solution

The fourth proportional to 117,479.36, 162,121.74 and 67,178.36 is: 92,706.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,479.36 : 162,121.74 = 67,178.36 : x
  2. Step 2: Convert to fraction form
    117,479.36/162,121.74 = 67,178.36/x
  3. Step 3: Cross multiply
    117,479.36x = 162,121.74 × 67,178.36
  4. Step 4: Simplify right side
    117,479.36x = 10,891,072,613.55
  5. Step 5: Solve for x
    x = 10,891,072,613.55/117,479.36
  6. Step 6: Final answer
    x = 92,706.26

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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.