Home / 136,778.08-205,174.40-43,276.64

Finding the Fourth Proportional to 136,778.08, 205,174.40 and 43,276.64

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Solution

The fourth proportional to 136,778.08, 205,174.40 and 43,276.64 is: 64,917.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,778.08 : 205,174.40 = 43,276.64 : x
  2. Step 2: Convert to fraction form
    136,778.08/205,174.40 = 43,276.64/x
  3. Step 3: Cross multiply
    136,778.08x = 205,174.40 × 43,276.64
  4. Step 4: Simplify right side
    136,778.08x = 8,879,258,646.02
  5. Step 5: Solve for x
    x = 8,879,258,646.02/136,778.08
  6. Step 6: Final answer
    x = 64,917.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.