Home / 213,778.52-295,188.74-137,335.58

Finding the Fourth Proportional to 213,778.52, 295,188.74 and 137,335.58

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Solution

The fourth proportional to 213,778.52, 295,188.74 and 137,335.58 is: 189,635.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,778.52 : 295,188.74 = 137,335.58 : x
  2. Step 2: Convert to fraction form
    213,778.52/295,188.74 = 137,335.58/x
  3. Step 3: Cross multiply
    213,778.52x = 295,188.74 × 137,335.58
  4. Step 4: Simplify right side
    213,778.52x = 40,539,915,684.76
  5. Step 5: Solve for x
    x = 40,539,915,684.76/213,778.52
  6. Step 6: Final answer
    x = 189,635.13

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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.