Home / 111,452.40-153,516.60-91,234.80

Finding the Fourth Proportional to 111,452.40, 153,516.60 and 91,234.80

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Solution

The fourth proportional to 111,452.40, 153,516.60 and 91,234.80 is: 125,668.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,452.40 : 153,516.60 = 91,234.80 : x
  2. Step 2: Convert to fraction form
    111,452.40/153,516.60 = 91,234.80/x
  3. Step 3: Cross multiply
    111,452.40x = 153,516.60 × 91,234.80
  4. Step 4: Simplify right side
    111,452.40x = 14,006,056,297.68
  5. Step 5: Solve for x
    x = 14,006,056,297.68/111,452.40
  6. Step 6: Final answer
    x = 125,668.50

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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.