Home / 115,186.20-158,969.84-64,203.59

Finding the Fourth Proportional to 115,186.20, 158,969.84 and 64,203.59

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Solution

The fourth proportional to 115,186.20, 158,969.84 and 64,203.59 is: 88,608.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,186.20 : 158,969.84 = 64,203.59 : x
  2. Step 2: Convert to fraction form
    115,186.20/158,969.84 = 64,203.59/x
  3. Step 3: Cross multiply
    115,186.20x = 158,969.84 × 64,203.59
  4. Step 4: Simplify right side
    115,186.20x = 10,206,433,313.86
  5. Step 5: Solve for x
    x = 10,206,433,313.86/115,186.20
  6. Step 6: Final answer
    x = 88,608.13

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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.