Home / 139,951.23-193,136.60-85,512.24

Finding the Fourth Proportional to 139,951.23, 193,136.60 and 85,512.24

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Solution

The fourth proportional to 139,951.23, 193,136.60 and 85,512.24 is: 118,009.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,951.23 : 193,136.60 = 85,512.24 : x
  2. Step 2: Convert to fraction form
    139,951.23/193,136.60 = 85,512.24/x
  3. Step 3: Cross multiply
    139,951.23x = 193,136.60 × 85,512.24
  4. Step 4: Simplify right side
    139,951.23x = 16,515,543,505.76
  5. Step 5: Solve for x
    x = 16,515,543,505.76/139,951.23
  6. Step 6: Final answer
    x = 118,009.28

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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.