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Finding the Fourth Proportional to 133,085.60, 199,628.40 and 122,199.20

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Solution

The fourth proportional to 133,085.60, 199,628.40 and 122,199.20 is: 183,298.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,085.60 : 199,628.40 = 122,199.20 : x
  2. Step 2: Convert to fraction form
    133,085.60/199,628.40 = 122,199.20/x
  3. Step 3: Cross multiply
    133,085.60x = 199,628.40 × 122,199.20
  4. Step 4: Simplify right side
    133,085.60x = 24,394,430,777.28
  5. Step 5: Solve for x
    x = 24,394,430,777.28/133,085.60
  6. Step 6: Final answer
    x = 183,298.80

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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.