Home / 223,161.39-307,968.08-122,561.55

Finding the Fourth Proportional to 223,161.39, 307,968.08 and 122,561.55

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Solution

The fourth proportional to 223,161.39, 307,968.08 and 122,561.55 is: 169,137.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,161.39 : 307,968.08 = 122,561.55 : x
  2. Step 2: Convert to fraction form
    223,161.39/307,968.08 = 122,561.55/x
  3. Step 3: Cross multiply
    223,161.39x = 307,968.08 × 122,561.55
  4. Step 4: Simplify right side
    223,161.39x = 37,745,044,622.52
  5. Step 5: Solve for x
    x = 37,745,044,622.52/223,161.39
  6. Step 6: Final answer
    x = 169,137.88

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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.