Home / 211,679.64-292,144.86-122,255.64

Finding the Fourth Proportional to 211,679.64, 292,144.86 and 122,255.64

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Solution

The fourth proportional to 211,679.64, 292,144.86 and 122,255.64 is: 168,728.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,679.64 : 292,144.86 = 122,255.64 : x
  2. Step 2: Convert to fraction form
    211,679.64/292,144.86 = 122,255.64/x
  3. Step 3: Cross multiply
    211,679.64x = 292,144.86 × 122,255.64
  4. Step 4: Simplify right side
    211,679.64x = 35,716,356,832.01
  5. Step 5: Solve for x
    x = 35,716,356,832.01/211,679.64
  6. Step 6: Final answer
    x = 168,728.35

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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.