Home / 157,739.83-217,680.91-86,119.85

Finding the Fourth Proportional to 157,739.83, 217,680.91 and 86,119.85

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Solution

The fourth proportional to 157,739.83, 217,680.91 and 86,119.85 is: 118,845.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,739.83 : 217,680.91 = 86,119.85 : x
  2. Step 2: Convert to fraction form
    157,739.83/217,680.91 = 86,119.85/x
  3. Step 3: Cross multiply
    157,739.83x = 217,680.91 × 86,119.85
  4. Step 4: Simplify right side
    157,739.83x = 18,746,647,816.48
  5. Step 5: Solve for x
    x = 18,746,647,816.48/157,739.83
  6. Step 6: Final answer
    x = 118,845.37

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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.