Home / 102,621.94-141,621.01-57,301.83

Finding the Fourth Proportional to 102,621.94, 141,621.01 and 57,301.83

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Solution

The fourth proportional to 102,621.94, 141,621.01 and 57,301.83 is: 79,078.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,621.94 : 141,621.01 = 57,301.83 : x
  2. Step 2: Convert to fraction form
    102,621.94/141,621.01 = 57,301.83/x
  3. Step 3: Cross multiply
    102,621.94x = 141,621.01 × 57,301.83
  4. Step 4: Simplify right side
    102,621.94x = 8,115,142,896.19
  5. Step 5: Solve for x
    x = 8,115,142,896.19/102,621.94
  6. Step 6: Final answer
    x = 79,078.05

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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.