Home / 90,611.30-124,993.22-84,196.65

Finding the Fourth Proportional to 90,611.30, 124,993.22 and 84,196.65

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Solution

The fourth proportional to 90,611.30, 124,993.22 and 84,196.65 is: 116,144.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,611.30 : 124,993.22 = 84,196.65 : x
  2. Step 2: Convert to fraction form
    90,611.30/124,993.22 = 84,196.65/x
  3. Step 3: Cross multiply
    90,611.30x = 124,993.22 × 84,196.65
  4. Step 4: Simplify right side
    90,611.30x = 10,524,009,975.73
  5. Step 5: Solve for x
    x = 10,524,009,975.73/90,611.30
  6. Step 6: Final answer
    x = 116,144.57

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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.