Home / 113,958.72-157,236.12-66,183.66

Finding the Fourth Proportional to 113,958.72, 157,236.12 and 66,183.66

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Solution

The fourth proportional to 113,958.72, 157,236.12 and 66,183.66 is: 91,317.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,958.72 : 157,236.12 = 66,183.66 : x
  2. Step 2: Convert to fraction form
    113,958.72/157,236.12 = 66,183.66/x
  3. Step 3: Cross multiply
    113,958.72x = 157,236.12 × 66,183.66
  4. Step 4: Simplify right side
    113,958.72x = 10,406,461,905.80
  5. Step 5: Solve for x
    x = 10,406,461,905.80/113,958.72
  6. Step 6: Final answer
    x = 91,317.82

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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.