Home / 185,765.20-256,396.80-122,108.92

Finding the Fourth Proportional to 185,765.20, 256,396.80 and 122,108.92

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Solution

The fourth proportional to 185,765.20, 256,396.80 and 122,108.92 is: 168,537.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,765.20 : 256,396.80 = 122,108.92 : x
  2. Step 2: Convert to fraction form
    185,765.20/256,396.80 = 122,108.92/x
  3. Step 3: Cross multiply
    185,765.20x = 256,396.80 × 122,108.92
  4. Step 4: Simplify right side
    185,765.20x = 31,308,336,339.46
  5. Step 5: Solve for x
    x = 31,308,336,339.46/185,765.20
  6. Step 6: Final answer
    x = 168,537.14

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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.