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Finding the Fourth Proportional to 133,393.80, 184,099.32 and 76,816.20

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Solution

The fourth proportional to 133,393.80, 184,099.32 and 76,816.20 is: 106,015.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,393.80 : 184,099.32 = 76,816.20 : x
  2. Step 2: Convert to fraction form
    133,393.80/184,099.32 = 76,816.20/x
  3. Step 3: Cross multiply
    133,393.80x = 184,099.32 × 76,816.20
  4. Step 4: Simplify right side
    133,393.80x = 14,141,810,184.98
  5. Step 5: Solve for x
    x = 14,141,810,184.98/133,393.80
  6. Step 6: Final answer
    x = 106,015.50

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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.