Home / 188,728.79-260,448.62-108,163.35

Finding the Fourth Proportional to 188,728.79, 260,448.62 and 108,163.35

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Solution

The fourth proportional to 188,728.79, 260,448.62 and 108,163.35 is: 149,267.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,728.79 : 260,448.62 = 108,163.35 : x
  2. Step 2: Convert to fraction form
    188,728.79/260,448.62 = 108,163.35/x
  3. Step 3: Cross multiply
    188,728.79x = 260,448.62 × 108,163.35
  4. Step 4: Simplify right side
    188,728.79x = 28,170,994,701.26
  5. Step 5: Solve for x
    x = 28,170,994,701.26/188,728.79
  6. Step 6: Final answer
    x = 149,267.08

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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.