Home / 102,460.74-141,396.44-57,141.60

Finding the Fourth Proportional to 102,460.74, 141,396.44 and 57,141.60

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Solution

The fourth proportional to 102,460.74, 141,396.44 and 57,141.60 is: 78,855.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,460.74 : 141,396.44 = 57,141.60 : x
  2. Step 2: Convert to fraction form
    102,460.74/141,396.44 = 57,141.60/x
  3. Step 3: Cross multiply
    102,460.74x = 141,396.44 × 57,141.60
  4. Step 4: Simplify right side
    102,460.74x = 8,079,618,815.90
  5. Step 5: Solve for x
    x = 8,079,618,815.90/102,460.74
  6. Step 6: Final answer
    x = 78,855.75

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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.