Home / 136,718.87-188,621.70-85,733.73

Finding the Fourth Proportional to 136,718.87, 188,621.70 and 85,733.73

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Solution

The fourth proportional to 136,718.87, 188,621.70 and 85,733.73 is: 118,280.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,718.87 : 188,621.70 = 85,733.73 : x
  2. Step 2: Convert to fraction form
    136,718.87/188,621.70 = 85,733.73/x
  3. Step 3: Cross multiply
    136,718.87x = 188,621.70 × 85,733.73
  4. Step 4: Simplify right side
    136,718.87x = 16,171,241,899.94
  5. Step 5: Solve for x
    x = 16,171,241,899.94/136,718.87
  6. Step 6: Final answer
    x = 118,280.98

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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.