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Finding the Fourth Proportional to 122,800.96, 169,486.04 and 71,110.54

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Solution

The fourth proportional to 122,800.96, 169,486.04 and 71,110.54 is: 98,144.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,800.96 : 169,486.04 = 71,110.54 : x
  2. Step 2: Convert to fraction form
    122,800.96/169,486.04 = 71,110.54/x
  3. Step 3: Cross multiply
    122,800.96x = 169,486.04 × 71,110.54
  4. Step 4: Simplify right side
    122,800.96x = 12,052,243,826.86
  5. Step 5: Solve for x
    x = 12,052,243,826.86/122,800.96
  6. Step 6: Final answer
    x = 98,144.54

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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.