Home / 188,311.02-259,881.93-103,428.96

Finding the Fourth Proportional to 188,311.02, 259,881.93 and 103,428.96

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Solution

The fourth proportional to 188,311.02, 259,881.93 and 103,428.96 is: 142,738.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,311.02 : 259,881.93 = 103,428.96 : x
  2. Step 2: Convert to fraction form
    188,311.02/259,881.93 = 103,428.96/x
  3. Step 3: Cross multiply
    188,311.02x = 259,881.93 × 103,428.96
  4. Step 4: Simplify right side
    188,311.02x = 26,879,317,742.69
  5. Step 5: Solve for x
    x = 26,879,317,742.69/188,311.02
  6. Step 6: Final answer
    x = 142,738.95

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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.