Home / 142,908.75-197,269.43-107,202.60

Finding the Fourth Proportional to 142,908.75, 197,269.43 and 107,202.60

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Solution

The fourth proportional to 142,908.75, 197,269.43 and 107,202.60 is: 147,981.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,908.75 : 197,269.43 = 107,202.60 : x
  2. Step 2: Convert to fraction form
    142,908.75/197,269.43 = 107,202.60/x
  3. Step 3: Cross multiply
    142,908.75x = 197,269.43 × 107,202.60
  4. Step 4: Simplify right side
    142,908.75x = 21,147,795,260.51
  5. Step 5: Solve for x
    x = 21,147,795,260.51/142,908.75
  6. Step 6: Final answer
    x = 147,981.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.