Home / 133,387.20-184,096.80-79,713.60

Finding the Fourth Proportional to 133,387.20, 184,096.80 and 79,713.60

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Solution

The fourth proportional to 133,387.20, 184,096.80 and 79,713.60 is: 110,018.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,387.20 : 184,096.80 = 79,713.60 : x
  2. Step 2: Convert to fraction form
    133,387.20/184,096.80 = 79,713.60/x
  3. Step 3: Cross multiply
    133,387.20x = 184,096.80 × 79,713.60
  4. Step 4: Simplify right side
    133,387.20x = 14,675,018,676.48
  5. Step 5: Solve for x
    x = 14,675,018,676.48/133,387.20
  6. Step 6: Final answer
    x = 110,018.19

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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.