Home / 188,590.59-260,261.96-103,715.55

Finding the Fourth Proportional to 188,590.59, 260,261.96 and 103,715.55

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Solution

The fourth proportional to 188,590.59, 260,261.96 and 103,715.55 is: 143,131.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,590.59 : 260,261.96 = 103,715.55 : x
  2. Step 2: Convert to fraction form
    188,590.59/260,261.96 = 103,715.55/x
  3. Step 3: Cross multiply
    188,590.59x = 260,261.96 × 103,715.55
  4. Step 4: Simplify right side
    188,590.59x = 26,993,211,806.90
  5. Step 5: Solve for x
    x = 26,993,211,806.90/188,590.59
  6. Step 6: Final answer
    x = 143,131.28

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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.