Home / 115,883.53-159,906.06-64,889.17

Finding the Fourth Proportional to 115,883.53, 159,906.06 and 64,889.17

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Solution

The fourth proportional to 115,883.53, 159,906.06 and 64,889.17 is: 89,539.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,883.53 : 159,906.06 = 64,889.17 : x
  2. Step 2: Convert to fraction form
    115,883.53/159,906.06 = 64,889.17/x
  3. Step 3: Cross multiply
    115,883.53x = 159,906.06 × 64,889.17
  4. Step 4: Simplify right side
    115,883.53x = 10,376,171,511.37
  5. Step 5: Solve for x
    x = 10,376,171,511.37/115,883.53
  6. Step 6: Final answer
    x = 89,539.66

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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.