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Finding the Fourth Proportional to 122,861.60, 184,000.80 and 75,622.40

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Solution

The fourth proportional to 122,861.60, 184,000.80 and 75,622.40 is: 113,254.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,861.60 : 184,000.80 = 75,622.40 : x
  2. Step 2: Convert to fraction form
    122,861.60/184,000.80 = 75,622.40/x
  3. Step 3: Cross multiply
    122,861.60x = 184,000.80 × 75,622.40
  4. Step 4: Simplify right side
    122,861.60x = 13,914,582,097.92
  5. Step 5: Solve for x
    x = 13,914,582,097.92/122,861.60
  6. Step 6: Final answer
    x = 113,254.12

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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.