Home / 105,583.37-145,704.99-57,836.70

Finding the Fourth Proportional to 105,583.37, 145,704.99 and 57,836.70

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Solution

The fourth proportional to 105,583.37, 145,704.99 and 57,836.70 is: 79,814.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,583.37 : 145,704.99 = 57,836.70 : x
  2. Step 2: Convert to fraction form
    105,583.37/145,704.99 = 57,836.70/x
  3. Step 3: Cross multiply
    105,583.37x = 145,704.99 × 57,836.70
  4. Step 4: Simplify right side
    105,583.37x = 8,427,096,012.02
  5. Step 5: Solve for x
    x = 8,427,096,012.02/105,583.37
  6. Step 6: Final answer
    x = 79,814.62

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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.