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Finding the Fourth Proportional to 115,205.60, 161,754.40 and 115,205.60

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Solution

The fourth proportional to 115,205.60, 161,754.40 and 115,205.60 is: 161,754.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,205.60 : 161,754.40 = 115,205.60 : x
  2. Step 2: Convert to fraction form
    115,205.60/161,754.40 = 115,205.60/x
  3. Step 3: Cross multiply
    115,205.60x = 161,754.40 × 115,205.60
  4. Step 4: Simplify right side
    115,205.60x = 18,635,012,704.64
  5. Step 5: Solve for x
    x = 18,635,012,704.64/115,205.60
  6. Step 6: Final answer
    x = 161,754.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.