Home / 108,999.26-150,357.43-68,643.64

Finding the Fourth Proportional to 108,999.26, 150,357.43 and 68,643.64

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Solution

The fourth proportional to 108,999.26, 150,357.43 and 68,643.64 is: 94,689.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,999.26 : 150,357.43 = 68,643.64 : x
  2. Step 2: Convert to fraction form
    108,999.26/150,357.43 = 68,643.64/x
  3. Step 3: Cross multiply
    108,999.26x = 150,357.43 × 68,643.64
  4. Step 4: Simplify right side
    108,999.26x = 10,321,081,296.25
  5. Step 5: Solve for x
    x = 10,321,081,296.25/108,999.26
  6. Step 6: Final answer
    x = 94,689.46

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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.