Home / 188,026.50-259,476.58-103,143.76

Finding the Fourth Proportional to 188,026.50, 259,476.58 and 103,143.76

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Solution

The fourth proportional to 188,026.50, 259,476.58 and 103,143.76 is: 142,338.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,026.50 : 259,476.58 = 103,143.76 : x
  2. Step 2: Convert to fraction form
    188,026.50/259,476.58 = 103,143.76/x
  3. Step 3: Cross multiply
    188,026.50x = 259,476.58 × 103,143.76
  4. Step 4: Simplify right side
    188,026.50x = 26,763,390,093.14
  5. Step 5: Solve for x
    x = 26,763,390,093.14/188,026.50
  6. Step 6: Final answer
    x = 142,338.39

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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.