Home / 151,321.42-208,816.83-86,744.36

Finding the Fourth Proportional to 151,321.42, 208,816.83 and 86,744.36

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Solution

The fourth proportional to 151,321.42, 208,816.83 and 86,744.36 is: 119,703.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,321.42 : 208,816.83 = 86,744.36 : x
  2. Step 2: Convert to fraction form
    151,321.42/208,816.83 = 86,744.36/x
  3. Step 3: Cross multiply
    151,321.42x = 208,816.83 × 86,744.36
  4. Step 4: Simplify right side
    151,321.42x = 18,113,682,589.80
  5. Step 5: Solve for x
    x = 18,113,682,589.80/151,321.42
  6. Step 6: Final answer
    x = 119,703.36

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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.