Home / 189,772.36-261,899.44-104,887.60

Finding the Fourth Proportional to 189,772.36, 261,899.44 and 104,887.60

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Solution

The fourth proportional to 189,772.36, 261,899.44 and 104,887.60 is: 144,752.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,772.36 : 261,899.44 = 104,887.60 : x
  2. Step 2: Convert to fraction form
    189,772.36/261,899.44 = 104,887.60/x
  3. Step 3: Cross multiply
    189,772.36x = 261,899.44 × 104,887.60
  4. Step 4: Simplify right side
    189,772.36x = 27,470,003,702.94
  5. Step 5: Solve for x
    x = 27,470,003,702.94/189,772.36
  6. Step 6: Final answer
    x = 144,752.40

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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.