Home / 104,533.12-144,258.72-56,789.44

Finding the Fourth Proportional to 104,533.12, 144,258.72 and 56,789.44

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Solution

The fourth proportional to 104,533.12, 144,258.72 and 56,789.44 is: 78,371.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,533.12 : 144,258.72 = 56,789.44 : x
  2. Step 2: Convert to fraction form
    104,533.12/144,258.72 = 56,789.44/x
  3. Step 3: Cross multiply
    104,533.12x = 144,258.72 × 56,789.44
  4. Step 4: Simplify right side
    104,533.12x = 8,192,371,923.92
  5. Step 5: Solve for x
    x = 8,192,371,923.92/104,533.12
  6. Step 6: Final answer
    x = 78,371.06

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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.