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Finding the Fourth Proportional to 122,401.46, 168,917.36 and 68,689.77

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Solution

The fourth proportional to 122,401.46, 168,917.36 and 68,689.77 is: 94,793.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,401.46 : 168,917.36 = 68,689.77 : x
  2. Step 2: Convert to fraction form
    122,401.46/168,917.36 = 68,689.77/x
  3. Step 3: Cross multiply
    122,401.46x = 168,917.36 × 68,689.77
  4. Step 4: Simplify right side
    122,401.46x = 11,602,894,607.41
  5. Step 5: Solve for x
    x = 11,602,894,607.41/122,401.46
  6. Step 6: Final answer
    x = 94,793.76

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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.