Home / 149,260.40-205,628.91-103,860.41

Finding the Fourth Proportional to 149,260.40, 205,628.91 and 103,860.41

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Solution

The fourth proportional to 149,260.40, 205,628.91 and 103,860.41 is: 143,083.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,260.40 : 205,628.91 = 103,860.41 : x
  2. Step 2: Convert to fraction form
    149,260.40/205,628.91 = 103,860.41/x
  3. Step 3: Cross multiply
    149,260.40x = 205,628.91 × 103,860.41
  4. Step 4: Simplify right side
    149,260.40x = 21,356,701,872.31
  5. Step 5: Solve for x
    x = 21,356,701,872.31/149,260.40
  6. Step 6: Final answer
    x = 143,083.51

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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.