Home / 105,064.62-144,990.99-57,318.36

Finding the Fourth Proportional to 105,064.62, 144,990.99 and 57,318.36

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Solution

The fourth proportional to 105,064.62, 144,990.99 and 57,318.36 is: 79,100.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,064.62 : 144,990.99 = 57,318.36 : x
  2. Step 2: Convert to fraction form
    105,064.62/144,990.99 = 57,318.36/x
  3. Step 3: Cross multiply
    105,064.62x = 144,990.99 × 57,318.36
  4. Step 4: Simplify right side
    105,064.62x = 8,310,645,761.58
  5. Step 5: Solve for x
    x = 8,310,645,761.58/105,064.62
  6. Step 6: Final answer
    x = 79,100.33

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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.