Home / 188,518.10-260,148.37-103,634.56

Finding the Fourth Proportional to 188,518.10, 260,148.37 and 103,634.56

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Solution

The fourth proportional to 188,518.10, 260,148.37 and 103,634.56 is: 143,012.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,518.10 : 260,148.37 = 103,634.56 : x
  2. Step 2: Convert to fraction form
    188,518.10/260,148.37 = 103,634.56/x
  3. Step 3: Cross multiply
    188,518.10x = 260,148.37 × 103,634.56
  4. Step 4: Simplify right side
    188,518.10x = 26,960,361,859.67
  5. Step 5: Solve for x
    x = 26,960,361,859.67/188,518.10
  6. Step 6: Final answer
    x = 143,012.06

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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.