Home / 115,933.26-159,998.05-64,945.18

Finding the Fourth Proportional to 115,933.26, 159,998.05 and 64,945.18

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Solution

The fourth proportional to 115,933.26, 159,998.05 and 64,945.18 is: 89,630.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,933.26 : 159,998.05 = 64,945.18 : x
  2. Step 2: Convert to fraction form
    115,933.26/159,998.05 = 64,945.18/x
  3. Step 3: Cross multiply
    115,933.26x = 159,998.05 × 64,945.18
  4. Step 4: Simplify right side
    115,933.26x = 10,391,102,156.90
  5. Step 5: Solve for x
    x = 10,391,102,156.90/115,933.26
  6. Step 6: Final answer
    x = 89,630.04

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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.