Home / 113,847.88-157,119.06-66,116.20

Finding the Fourth Proportional to 113,847.88, 157,119.06 and 66,116.20

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Solution

The fourth proportional to 113,847.88, 157,119.06 and 66,116.20 is: 91,245.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,847.88 : 157,119.06 = 66,116.20 : x
  2. Step 2: Convert to fraction form
    113,847.88/157,119.06 = 66,116.20/x
  3. Step 3: Cross multiply
    113,847.88x = 157,119.06 × 66,116.20
  4. Step 4: Simplify right side
    113,847.88x = 10,388,115,194.77
  5. Step 5: Solve for x
    x = 10,388,115,194.77/113,847.88
  6. Step 6: Final answer
    x = 91,245.57

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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.