Home / 188,724.90-260,440.36-102,683.92

Finding the Fourth Proportional to 188,724.90, 260,440.36 and 102,683.92

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Solution

The fourth proportional to 188,724.90, 260,440.36 and 102,683.92 is: 141,703.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,724.90 : 260,440.36 = 102,683.92 : x
  2. Step 2: Convert to fraction form
    188,724.90/260,440.36 = 102,683.92/x
  3. Step 3: Cross multiply
    188,724.90x = 260,440.36 × 102,683.92
  4. Step 4: Simplify right side
    188,724.90x = 26,743,037,091.01
  5. Step 5: Solve for x
    x = 26,743,037,091.01/188,724.90
  6. Step 6: Final answer
    x = 141,703.81

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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.