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Finding the Fourth Proportional to 188,418.03, 260,018.93 and 103,535.08

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Solution

The fourth proportional to 188,418.03, 260,018.93 and 103,535.08 is: 142,879.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,418.03 : 260,018.93 = 103,535.08 : x
  2. Step 2: Convert to fraction form
    188,418.03/260,018.93 = 103,535.08/x
  3. Step 3: Cross multiply
    188,418.03x = 260,018.93 × 103,535.08
  4. Step 4: Simplify right side
    188,418.03x = 26,921,080,719.06
  5. Step 5: Solve for x
    x = 26,921,080,719.06/188,418.03
  6. Step 6: Final answer
    x = 142,879.54

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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.