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Finding the Fourth Proportional to 135,040.60, 202,560.90 and 84,958.30

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Solution

The fourth proportional to 135,040.60, 202,560.90 and 84,958.30 is: 127,437.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,040.60 : 202,560.90 = 84,958.30 : x
  2. Step 2: Convert to fraction form
    135,040.60/202,560.90 = 84,958.30/x
  3. Step 3: Cross multiply
    135,040.60x = 202,560.90 × 84,958.30
  4. Step 4: Simplify right side
    135,040.60x = 17,209,229,710.47
  5. Step 5: Solve for x
    x = 17,209,229,710.47/135,040.60
  6. Step 6: Final answer
    x = 127,437.45

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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.