Home / 184,961.10-255,246.46-128,405.28

Finding the Fourth Proportional to 184,961.10, 255,246.46 and 128,405.28

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Solution

The fourth proportional to 184,961.10, 255,246.46 and 128,405.28 is: 177,199.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,961.10 : 255,246.46 = 128,405.28 : x
  2. Step 2: Convert to fraction form
    184,961.10/255,246.46 = 128,405.28/x
  3. Step 3: Cross multiply
    184,961.10x = 255,246.46 × 128,405.28
  4. Step 4: Simplify right side
    184,961.10x = 32,774,993,165.31
  5. Step 5: Solve for x
    x = 32,774,993,165.31/184,961.10
  6. Step 6: Final answer
    x = 177,199.38

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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.