Home / 188,909.51-260,626.65-107,190.43

Finding the Fourth Proportional to 188,909.51, 260,626.65 and 107,190.43

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Solution

The fourth proportional to 188,909.51, 260,626.65 and 107,190.43 is: 147,883.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,909.51 : 260,626.65 = 107,190.43 : x
  2. Step 2: Convert to fraction form
    188,909.51/260,626.65 = 107,190.43/x
  3. Step 3: Cross multiply
    188,909.51x = 260,626.65 × 107,190.43
  4. Step 4: Simplify right side
    188,909.51x = 27,936,683,095.45
  5. Step 5: Solve for x
    x = 27,936,683,095.45/188,909.51
  6. Step 6: Final answer
    x = 147,883.95

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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.