Home / 133,485.12-184,103.28-85,743.36

Finding the Fourth Proportional to 133,485.12, 184,103.28 and 85,743.36

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Solution

The fourth proportional to 133,485.12, 184,103.28 and 85,743.36 is: 118,257.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,485.12 : 184,103.28 = 85,743.36 : x
  2. Step 2: Convert to fraction form
    133,485.12/184,103.28 = 85,743.36/x
  3. Step 3: Cross multiply
    133,485.12x = 184,103.28 × 85,743.36
  4. Step 4: Simplify right side
    133,485.12x = 15,785,633,814.22
  5. Step 5: Solve for x
    x = 15,785,633,814.22/133,485.12
  6. Step 6: Final answer
    x = 118,257.63

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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.