Home / 109,889.06-151,664.43-64,578.18

Finding the Fourth Proportional to 109,889.06, 151,664.43 and 64,578.18

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Solution

The fourth proportional to 109,889.06, 151,664.43 and 64,578.18 is: 89,128.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,889.06 : 151,664.43 = 64,578.18 : x
  2. Step 2: Convert to fraction form
    109,889.06/151,664.43 = 64,578.18/x
  3. Step 3: Cross multiply
    109,889.06x = 151,664.43 × 64,578.18
  4. Step 4: Simplify right side
    109,889.06x = 9,794,213,205.96
  5. Step 5: Solve for x
    x = 9,794,213,205.96/109,889.06
  6. Step 6: Final answer
    x = 89,128.19

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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.