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Finding the Fourth Proportional to 133,785.60, 184,598.10 and 79,327.68

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Solution

The fourth proportional to 133,785.60, 184,598.10 and 79,327.68 is: 109,456.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,785.60 : 184,598.10 = 79,327.68 : x
  2. Step 2: Convert to fraction form
    133,785.60/184,598.10 = 79,327.68/x
  3. Step 3: Cross multiply
    133,785.60x = 184,598.10 × 79,327.68
  4. Step 4: Simplify right side
    133,785.60x = 14,643,739,005.41
  5. Step 5: Solve for x
    x = 14,643,739,005.41/133,785.60
  6. Step 6: Final answer
    x = 109,456.77

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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.