Home / 113,268.56-156,080.27-87,619.14

Finding the Fourth Proportional to 113,268.56, 156,080.27 and 87,619.14

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Solution

The fourth proportional to 113,268.56, 156,080.27 and 87,619.14 is: 120,736.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,268.56 : 156,080.27 = 87,619.14 : x
  2. Step 2: Convert to fraction form
    113,268.56/156,080.27 = 87,619.14/x
  3. Step 3: Cross multiply
    113,268.56x = 156,080.27 × 87,619.14
  4. Step 4: Simplify right side
    113,268.56x = 13,675,619,247.42
  5. Step 5: Solve for x
    x = 13,675,619,247.42/113,268.56
  6. Step 6: Final answer
    x = 120,736.24

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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.