Home / 157,805.08-217,772.22-86,183.80

Finding the Fourth Proportional to 157,805.08, 217,772.22 and 86,183.80

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Solution

The fourth proportional to 157,805.08, 217,772.22 and 86,183.80 is: 118,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,805.08 : 217,772.22 = 86,183.80 : x
  2. Step 2: Convert to fraction form
    157,805.08/217,772.22 = 86,183.80/x
  3. Step 3: Cross multiply
    157,805.08x = 217,772.22 × 86,183.80
  4. Step 4: Simplify right side
    157,805.08x = 18,768,437,454.04
  5. Step 5: Solve for x
    x = 18,768,437,454.04/157,805.08
  6. Step 6: Final answer
    x = 118,934.30

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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.