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Finding the Fourth Proportional to 133,618.64, 184,305.12 and 85,932.32

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Solution

The fourth proportional to 133,618.64, 184,305.12 and 85,932.32 is: 118,529.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,618.64 : 184,305.12 = 85,932.32 : x
  2. Step 2: Convert to fraction form
    133,618.64/184,305.12 = 85,932.32/x
  3. Step 3: Cross multiply
    133,618.64x = 184,305.12 × 85,932.32
  4. Step 4: Simplify right side
    133,618.64x = 15,837,766,549.48
  5. Step 5: Solve for x
    x = 15,837,766,549.48/133,618.64
  6. Step 6: Final answer
    x = 118,529.62

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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.