Home / 185,815.56-256,531.86-122,337.90

Finding the Fourth Proportional to 185,815.56, 256,531.86 and 122,337.90

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Solution

The fourth proportional to 185,815.56, 256,531.86 and 122,337.90 is: 168,896.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,815.56 : 256,531.86 = 122,337.90 : x
  2. Step 2: Convert to fraction form
    185,815.56/256,531.86 = 122,337.90/x
  3. Step 3: Cross multiply
    185,815.56x = 256,531.86 × 122,337.90
  4. Step 4: Simplify right side
    185,815.56x = 31,383,569,035.49
  5. Step 5: Solve for x
    x = 31,383,569,035.49/185,815.56
  6. Step 6: Final answer
    x = 168,896.35

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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.