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Finding the Fourth Proportional to 122,657.64, 184,219.90 and 76,234.92

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Solution

The fourth proportional to 122,657.64, 184,219.90 and 76,234.92 is: 114,497.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,657.64 : 184,219.90 = 76,234.92 : x
  2. Step 2: Convert to fraction form
    122,657.64/184,219.90 = 76,234.92/x
  3. Step 3: Cross multiply
    122,657.64x = 184,219.90 × 76,234.92
  4. Step 4: Simplify right side
    122,657.64x = 14,043,989,338.91
  5. Step 5: Solve for x
    x = 14,043,989,338.91/122,657.64
  6. Step 6: Final answer
    x = 114,497.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.