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Finding the Fourth Proportional to 169,830.80, 254,940.60 and 99,749.60

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Solution

The fourth proportional to 169,830.80, 254,940.60 and 99,749.60 is: 149,738.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,830.80 : 254,940.60 = 99,749.60 : x
  2. Step 2: Convert to fraction form
    169,830.80/254,940.60 = 99,749.60/x
  3. Step 3: Cross multiply
    169,830.80x = 254,940.60 × 99,749.60
  4. Step 4: Simplify right side
    169,830.80x = 25,430,222,873.76
  5. Step 5: Solve for x
    x = 25,430,222,873.76/169,830.80
  6. Step 6: Final answer
    x = 149,738.58

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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.