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Finding the Fourth Proportional to 188,036.42, 259,485.81 and 103,152.74

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Solution

The fourth proportional to 188,036.42, 259,485.81 and 103,152.74 is: 142,348.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,036.42 : 259,485.81 = 103,152.74 : x
  2. Step 2: Convert to fraction form
    188,036.42/259,485.81 = 103,152.74/x
  3. Step 3: Cross multiply
    188,036.42x = 259,485.81 × 103,152.74
  4. Step 4: Simplify right side
    188,036.42x = 26,766,672,292.62
  5. Step 5: Solve for x
    x = 26,766,672,292.62/188,036.42
  6. Step 6: Final answer
    x = 142,348.34

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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.