Home / 113,490.53-170,247.32-43,428.77

Finding the Fourth Proportional to 113,490.53, 170,247.32 and 43,428.77

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Solution

The fourth proportional to 113,490.53, 170,247.32 and 43,428.77 is: 65,147.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,490.53 : 170,247.32 = 43,428.77 : x
  2. Step 2: Convert to fraction form
    113,490.53/170,247.32 = 43,428.77/x
  3. Step 3: Cross multiply
    113,490.53x = 170,247.32 × 43,428.77
  4. Step 4: Simplify right side
    113,490.53x = 7,393,631,486.25
  5. Step 5: Solve for x
    x = 7,393,631,486.25/113,490.53
  6. Step 6: Final answer
    x = 65,147.56

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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.