Home / 133,399.20-184,115.52-85,712.16

Finding the Fourth Proportional to 133,399.20, 184,115.52 and 85,712.16

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Solution

The fourth proportional to 133,399.20, 184,115.52 and 85,712.16 is: 118,298.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,399.20 : 184,115.52 = 85,712.16 : x
  2. Step 2: Convert to fraction form
    133,399.20/184,115.52 = 85,712.16/x
  3. Step 3: Cross multiply
    133,399.20x = 184,115.52 × 85,712.16
  4. Step 4: Simplify right side
    133,399.20x = 15,780,938,908.72
  5. Step 5: Solve for x
    x = 15,780,938,908.72/133,399.20
  6. Step 6: Final answer
    x = 118,298.60

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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.