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Finding the Fourth Proportional to 122,352.33, 168,863.04 and 68,640.76

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Solution

The fourth proportional to 122,352.33, 168,863.04 and 68,640.76 is: 94,733.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,352.33 : 168,863.04 = 68,640.76 : x
  2. Step 2: Convert to fraction form
    122,352.33/168,863.04 = 68,640.76/x
  3. Step 3: Cross multiply
    122,352.33x = 168,863.04 × 68,640.76
  4. Step 4: Simplify right side
    122,352.33x = 11,590,887,401.51
  5. Step 5: Solve for x
    x = 11,590,887,401.51/122,352.33
  6. Step 6: Final answer
    x = 94,733.69

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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.