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Finding the Fourth Proportional to 136,014.60, 204,021.90 and 130,830.60

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Solution

The fourth proportional to 136,014.60, 204,021.90 and 130,830.60 is: 196,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,014.60 : 204,021.90 = 130,830.60 : x
  2. Step 2: Convert to fraction form
    136,014.60/204,021.90 = 130,830.60/x
  3. Step 3: Cross multiply
    136,014.60x = 204,021.90 × 130,830.60
  4. Step 4: Simplify right side
    136,014.60x = 26,692,307,590.14
  5. Step 5: Solve for x
    x = 26,692,307,590.14/136,014.60
  6. Step 6: Final answer
    x = 196,245.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.