Home / 188,504.79-260,130-103,621.25

Finding the Fourth Proportional to 188,504.79, 260,130 and 103,621.25

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Solution

The fourth proportional to 188,504.79, 260,130 and 103,621.25 is: 142,993.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,504.79 : 260,130 = 103,621.25 : x
  2. Step 2: Convert to fraction form
    188,504.79/260,130 = 103,621.25/x
  3. Step 3: Cross multiply
    188,504.79x = 260,130 × 103,621.25
  4. Step 4: Simplify right side
    188,504.79x = 26,954,994,461.85
  5. Step 5: Solve for x
    x = 26,954,994,461.85/188,504.79
  6. Step 6: Final answer
    x = 142,993.68

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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.