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Finding the Fourth Proportional to 135,393.60, 203,090.40 and 35,547.20

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Solution

The fourth proportional to 135,393.60, 203,090.40 and 35,547.20 is: 53,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,393.60 : 203,090.40 = 35,547.20 : x
  2. Step 2: Convert to fraction form
    135,393.60/203,090.40 = 35,547.20/x
  3. Step 3: Cross multiply
    135,393.60x = 203,090.40 × 35,547.20
  4. Step 4: Simplify right side
    135,393.60x = 7,219,295,066.88
  5. Step 5: Solve for x
    x = 7,219,295,066.88/135,393.60
  6. Step 6: Final answer
    x = 53,320.80

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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.