Home / 197,121.40-295,341.90-91,724.20

Finding the Fourth Proportional to 197,121.40, 295,341.90 and 91,724.20

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Solution

The fourth proportional to 197,121.40, 295,341.90 and 91,724.20 is: 137,428.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,121.40 : 295,341.90 = 91,724.20 : x
  2. Step 2: Convert to fraction form
    197,121.40/295,341.90 = 91,724.20/x
  3. Step 3: Cross multiply
    197,121.40x = 295,341.90 × 91,724.20
  4. Step 4: Simplify right side
    197,121.40x = 27,089,999,503.98
  5. Step 5: Solve for x
    x = 27,089,999,503.98/197,121.40
  6. Step 6: Final answer
    x = 137,428.00

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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.