Home / 113,861.56-157,162.32-66,136.36

Finding the Fourth Proportional to 113,861.56, 157,162.32 and 66,136.36

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Solution

The fourth proportional to 113,861.56, 157,162.32 and 66,136.36 is: 91,287.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,861.56 : 157,162.32 = 66,136.36 : x
  2. Step 2: Convert to fraction form
    113,861.56/157,162.32 = 66,136.36/x
  3. Step 3: Cross multiply
    113,861.56x = 157,162.32 × 66,136.36
  4. Step 4: Simplify right side
    113,861.56x = 10,394,143,773.96
  5. Step 5: Solve for x
    x = 10,394,143,773.96/113,861.56
  6. Step 6: Final answer
    x = 91,287.56

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1.5x scale

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.