Home / 118,122.36-163,007.82-67,821.72

Finding the Fourth Proportional to 118,122.36, 163,007.82 and 67,821.72

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Solution

The fourth proportional to 118,122.36, 163,007.82 and 67,821.72 is: 93,593.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,122.36 : 163,007.82 = 67,821.72 : x
  2. Step 2: Convert to fraction form
    118,122.36/163,007.82 = 67,821.72/x
  3. Step 3: Cross multiply
    118,122.36x = 163,007.82 × 67,821.72
  4. Step 4: Simplify right side
    118,122.36x = 11,055,470,725.85
  5. Step 5: Solve for x
    x = 11,055,470,725.85/118,122.36
  6. Step 6: Final answer
    x = 93,593.38

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1.5x scale

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.