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Finding the Fourth Proportional to 101,138.60, 141,331.60 and 101,138.60

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Solution

The fourth proportional to 101,138.60, 141,331.60 and 101,138.60 is: 141,331.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,138.60 : 141,331.60 = 101,138.60 : x
  2. Step 2: Convert to fraction form
    101,138.60/141,331.60 = 101,138.60/x
  3. Step 3: Cross multiply
    101,138.60x = 141,331.60 × 101,138.60
  4. Step 4: Simplify right side
    101,138.60x = 14,294,080,159.76
  5. Step 5: Solve for x
    x = 14,294,080,159.76/101,138.60
  6. Step 6: Final answer
    x = 141,331.60

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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.