Home / 188,485.12-260,109.66-103,600.36

Finding the Fourth Proportional to 188,485.12, 260,109.66 and 103,600.36

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Solution

The fourth proportional to 188,485.12, 260,109.66 and 103,600.36 is: 142,968.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,485.12 : 260,109.66 = 103,600.36 : x
  2. Step 2: Convert to fraction form
    188,485.12/260,109.66 = 103,600.36/x
  3. Step 3: Cross multiply
    188,485.12x = 260,109.66 × 103,600.36
  4. Step 4: Simplify right side
    188,485.12x = 26,947,454,415.48
  5. Step 5: Solve for x
    x = 26,947,454,415.48/188,485.12
  6. Step 6: Final answer
    x = 142,968.60

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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.