Home / 185,801.70-256,447.26-122,145.42

Finding the Fourth Proportional to 185,801.70, 256,447.26 and 122,145.42

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Solution

The fourth proportional to 185,801.70, 256,447.26 and 122,145.42 is: 168,587.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,801.70 : 256,447.26 = 122,145.42 : x
  2. Step 2: Convert to fraction form
    185,801.70/256,447.26 = 122,145.42/x
  3. Step 3: Cross multiply
    185,801.70x = 256,447.26 × 122,145.42
  4. Step 4: Simplify right side
    185,801.70x = 31,323,858,280.55
  5. Step 5: Solve for x
    x = 31,323,858,280.55/185,801.70
  6. Step 6: Final answer
    x = 168,587.58

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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.