Home / 185,813.55-256,529.10-122,335.89

Finding the Fourth Proportional to 185,813.55, 256,529.10 and 122,335.89

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Solution

The fourth proportional to 185,813.55, 256,529.10 and 122,335.89 is: 168,893.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,813.55 : 256,529.10 = 122,335.89 : x
  2. Step 2: Convert to fraction form
    185,813.55/256,529.10 = 122,335.89/x
  3. Step 3: Cross multiply
    185,813.55x = 256,529.10 × 122,335.89
  4. Step 4: Simplify right side
    185,813.55x = 31,382,715,759.40
  5. Step 5: Solve for x
    x = 31,382,715,759.40/185,813.55
  6. Step 6: Final answer
    x = 168,893.58

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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.