Home / 113,858.06-157,157.49-66,132.86

Finding the Fourth Proportional to 113,858.06, 157,157.49 and 66,132.86

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Solution

The fourth proportional to 113,858.06, 157,157.49 and 66,132.86 is: 91,282.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,858.06 : 157,157.49 = 66,132.86 : x
  2. Step 2: Convert to fraction form
    113,858.06/157,157.49 = 66,132.86/x
  3. Step 3: Cross multiply
    113,858.06x = 157,157.49 × 66,132.86
  4. Step 4: Simplify right side
    113,858.06x = 10,393,274,284.12
  5. Step 5: Solve for x
    x = 10,393,274,284.12/113,858.06
  6. Step 6: Final answer
    x = 91,282.73

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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.