Home / 105,064.24-144,989.14-57,318.61

Finding the Fourth Proportional to 105,064.24, 144,989.14 and 57,318.61

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Solution

The fourth proportional to 105,064.24, 144,989.14 and 57,318.61 is: 79,099.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,064.24 : 144,989.14 = 57,318.61 : x
  2. Step 2: Convert to fraction form
    105,064.24/144,989.14 = 57,318.61/x
  3. Step 3: Cross multiply
    105,064.24x = 144,989.14 × 57,318.61
  4. Step 4: Simplify right side
    105,064.24x = 8,310,576,251.24
  5. Step 5: Solve for x
    x = 8,310,576,251.24/105,064.24
  6. Step 6: Final answer
    x = 79,099.95

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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.