Home / 113,619.87-156,777.09-68,287.01

Finding the Fourth Proportional to 113,619.87, 156,777.09 and 68,287.01

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Solution

The fourth proportional to 113,619.87, 156,777.09 and 68,287.01 is: 94,225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,619.87 : 156,777.09 = 68,287.01 : x
  2. Step 2: Convert to fraction form
    113,619.87/156,777.09 = 68,287.01/x
  3. Step 3: Cross multiply
    113,619.87x = 156,777.09 × 68,287.01
  4. Step 4: Simplify right side
    113,619.87x = 10,705,837,672.64
  5. Step 5: Solve for x
    x = 10,705,837,672.64/113,619.87
  6. Step 6: Final answer
    x = 94,225.05

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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.