Home / 145,640.94-218,546.33-61,395.95

Finding the Fourth Proportional to 145,640.94, 218,546.33 and 61,395.95

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Solution

The fourth proportional to 145,640.94, 218,546.33 and 61,395.95 is: 92,129.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,640.94 : 218,546.33 = 61,395.95 : x
  2. Step 2: Convert to fraction form
    145,640.94/218,546.33 = 61,395.95/x
  3. Step 3: Cross multiply
    145,640.94x = 218,546.33 × 61,395.95
  4. Step 4: Simplify right side
    145,640.94x = 13,417,858,149.65
  5. Step 5: Solve for x
    x = 13,417,858,149.65/145,640.94
  6. Step 6: Final answer
    x = 92,129.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.