Home / 133,945.60-200,626.80-81,263.20

Finding the Fourth Proportional to 133,945.60, 200,626.80 and 81,263.20

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Solution

The fourth proportional to 133,945.60, 200,626.80 and 81,263.20 is: 121,717.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,945.60 : 200,626.80 = 81,263.20 : x
  2. Step 2: Convert to fraction form
    133,945.60/200,626.80 = 81,263.20/x
  3. Step 3: Cross multiply
    133,945.60x = 200,626.80 × 81,263.20
  4. Step 4: Simplify right side
    133,945.60x = 16,303,575,773.76
  5. Step 5: Solve for x
    x = 16,303,575,773.76/133,945.60
  6. Step 6: Final answer
    x = 121,717.89

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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.