Home / 122,305.08-168,771.18-67,859

Finding the Fourth Proportional to 122,305.08, 168,771.18 and 67,859

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Solution

The fourth proportional to 122,305.08, 168,771.18 and 67,859 is: 93,639.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,305.08 : 168,771.18 = 67,859 : x
  2. Step 2: Convert to fraction form
    122,305.08/168,771.18 = 67,859/x
  3. Step 3: Cross multiply
    122,305.08x = 168,771.18 × 67,859
  4. Step 4: Simplify right side
    122,305.08x = 11,452,643,503.62
  5. Step 5: Solve for x
    x = 11,452,643,503.62/122,305.08
  6. Step 6: Final answer
    x = 93,639.97

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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.