Home / 144,815.40-217,028.70-103,213.80

Finding the Fourth Proportional to 144,815.40, 217,028.70 and 103,213.80

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Solution

The fourth proportional to 144,815.40, 217,028.70 and 103,213.80 is: 154,682.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,815.40 : 217,028.70 = 103,213.80 : x
  2. Step 2: Convert to fraction form
    144,815.40/217,028.70 = 103,213.80/x
  3. Step 3: Cross multiply
    144,815.40x = 217,028.70 × 103,213.80
  4. Step 4: Simplify right side
    144,815.40x = 22,400,356,836.06
  5. Step 5: Solve for x
    x = 22,400,356,836.06/144,815.40
  6. Step 6: Final answer
    x = 154,682.15

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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.