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Finding the Fourth Proportional to 135,320.40, 203,009.40 and 41,835.60

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Solution

The fourth proportional to 135,320.40, 203,009.40 and 41,835.60 is: 62,762.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,320.40 : 203,009.40 = 41,835.60 : x
  2. Step 2: Convert to fraction form
    135,320.40/203,009.40 = 41,835.60/x
  3. Step 3: Cross multiply
    135,320.40x = 203,009.40 × 41,835.60
  4. Step 4: Simplify right side
    135,320.40x = 8,493,020,054.64
  5. Step 5: Solve for x
    x = 8,493,020,054.64/135,320.40
  6. Step 6: Final answer
    x = 62,762.30

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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.