Home / 78,190.23-117,285.48-19,025.94

Finding the Fourth Proportional to 78,190.23, 117,285.48 and 19,025.94

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Solution

The fourth proportional to 78,190.23, 117,285.48 and 19,025.94 is: 28,538.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,190.23 : 117,285.48 = 19,025.94 : x
  2. Step 2: Convert to fraction form
    78,190.23/117,285.48 = 19,025.94/x
  3. Step 3: Cross multiply
    78,190.23x = 117,285.48 × 19,025.94
  4. Step 4: Simplify right side
    78,190.23x = 2,231,466,505.35
  5. Step 5: Solve for x
    x = 2,231,466,505.35/78,190.23
  6. Step 6: Final answer
    x = 28,538.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.