Home / 188,718.55-260,438.74-108,161.62

Finding the Fourth Proportional to 188,718.55, 260,438.74 and 108,161.62

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Solution

The fourth proportional to 188,718.55, 260,438.74 and 108,161.62 is: 149,267.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,718.55 : 260,438.74 = 108,161.62 : x
  2. Step 2: Convert to fraction form
    188,718.55/260,438.74 = 108,161.62/x
  3. Step 3: Cross multiply
    188,718.55x = 260,438.74 × 108,161.62
  4. Step 4: Simplify right side
    188,718.55x = 28,169,475,107.66
  5. Step 5: Solve for x
    x = 28,169,475,107.66/188,718.55
  6. Step 6: Final answer
    x = 149,267.13

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1.5x scale

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.