Home / 113,909.58-157,168.62-66,134.16

Finding the Fourth Proportional to 113,909.58, 157,168.62 and 66,134.16

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Solution

The fourth proportional to 113,909.58, 157,168.62 and 66,134.16 is: 91,249.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,909.58 : 157,168.62 = 66,134.16 : x
  2. Step 2: Convert to fraction form
    113,909.58/157,168.62 = 66,134.16/x
  3. Step 3: Cross multiply
    113,909.58x = 157,168.62 × 66,134.16
  4. Step 4: Simplify right side
    113,909.58x = 10,394,214,662.06
  5. Step 5: Solve for x
    x = 10,394,214,662.06/113,909.58
  6. Step 6: Final answer
    x = 91,249.70

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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.