Home / 188,641.17-260,319.33-103,758.21

Finding the Fourth Proportional to 188,641.17, 260,319.33 and 103,758.21

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Solution

The fourth proportional to 188,641.17, 260,319.33 and 103,758.21 is: 143,183.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,641.17 : 260,319.33 = 103,758.21 : x
  2. Step 2: Convert to fraction form
    188,641.17/260,319.33 = 103,758.21/x
  3. Step 3: Cross multiply
    188,641.17x = 260,319.33 × 103,758.21
  4. Step 4: Simplify right side
    188,641.17x = 27,010,267,709.20
  5. Step 5: Solve for x
    x = 27,010,267,709.20/188,641.17
  6. Step 6: Final answer
    x = 143,183.31

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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.