Home / 188,509.19-260,136.09-103,625.64

Finding the Fourth Proportional to 188,509.19, 260,136.09 and 103,625.64

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Solution

The fourth proportional to 188,509.19, 260,136.09 and 103,625.64 is: 142,999.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,509.19 : 260,136.09 = 103,625.64 : x
  2. Step 2: Convert to fraction form
    188,509.19/260,136.09 = 103,625.64/x
  3. Step 3: Cross multiply
    188,509.19x = 260,136.09 × 103,625.64
  4. Step 4: Simplify right side
    188,509.19x = 26,956,768,813.35
  5. Step 5: Solve for x
    x = 26,956,768,813.35/188,509.19
  6. Step 6: Final answer
    x = 142,999.76

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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.