Home / 118,930.72-164,123.04-68,628.64

Finding the Fourth Proportional to 118,930.72, 164,123.04 and 68,628.64

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Solution

The fourth proportional to 118,930.72, 164,123.04 and 68,628.64 is: 94,706.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,930.72 : 164,123.04 = 68,628.64 : x
  2. Step 2: Convert to fraction form
    118,930.72/164,123.04 = 68,628.64/x
  3. Step 3: Cross multiply
    118,930.72x = 164,123.04 × 68,628.64
  4. Step 4: Simplify right side
    118,930.72x = 11,263,541,027.87
  5. Step 5: Solve for x
    x = 11,263,541,027.87/118,930.72
  6. Step 6: Final answer
    x = 94,706.74

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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.