Home / 102,858.11-141,957.32-57,538.61

Finding the Fourth Proportional to 102,858.11, 141,957.32 and 57,538.61

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Solution

The fourth proportional to 102,858.11, 141,957.32 and 57,538.61 is: 79,410.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,858.11 : 141,957.32 = 57,538.61 : x
  2. Step 2: Convert to fraction form
    102,858.11/141,957.32 = 57,538.61/x
  3. Step 3: Cross multiply
    102,858.11x = 141,957.32 × 57,538.61
  4. Step 4: Simplify right side
    102,858.11x = 8,168,025,874.65
  5. Step 5: Solve for x
    x = 8,168,025,874.65/102,858.11
  6. Step 6: Final answer
    x = 79,410.62

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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.