Home / 151,782.05-209,458.25-83,803.26

Finding the Fourth Proportional to 151,782.05, 209,458.25 and 83,803.26

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Solution

The fourth proportional to 151,782.05, 209,458.25 and 83,803.26 is: 115,647.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,782.05 : 209,458.25 = 83,803.26 : x
  2. Step 2: Convert to fraction form
    151,782.05/209,458.25 = 83,803.26/x
  3. Step 3: Cross multiply
    151,782.05x = 209,458.25 × 83,803.26
  4. Step 4: Simplify right side
    151,782.05x = 17,553,284,157.80
  5. Step 5: Solve for x
    x = 17,553,284,157.80/151,782.05
  6. Step 6: Final answer
    x = 115,647.96

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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.