Home / 113,736.12-156,905.94-68,387.88

Finding the Fourth Proportional to 113,736.12, 156,905.94 and 68,387.88

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Solution

The fourth proportional to 113,736.12, 156,905.94 and 68,387.88 is: 94,345.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,736.12 : 156,905.94 = 68,387.88 : x
  2. Step 2: Convert to fraction form
    113,736.12/156,905.94 = 68,387.88/x
  3. Step 3: Cross multiply
    113,736.12x = 156,905.94 × 68,387.88
  4. Step 4: Simplify right side
    113,736.12x = 10,730,464,596.01
  5. Step 5: Solve for x
    x = 10,730,464,596.01/113,736.12
  6. Step 6: Final answer
    x = 94,345.27

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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.