Home / 188,515.44-260,152.20-103,638.06

Finding the Fourth Proportional to 188,515.44, 260,152.20 and 103,638.06

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Solution

The fourth proportional to 188,515.44, 260,152.20 and 103,638.06 is: 143,021.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,515.44 : 260,152.20 = 103,638.06 : x
  2. Step 2: Convert to fraction form
    188,515.44/260,152.20 = 103,638.06/x
  3. Step 3: Cross multiply
    188,515.44x = 260,152.20 × 103,638.06
  4. Step 4: Simplify right side
    188,515.44x = 26,961,669,312.73
  5. Step 5: Solve for x
    x = 26,961,669,312.73/188,515.44
  6. Step 6: Final answer
    x = 143,021.01

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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.