Home / 108,983.72-150,415.36-90,805.60

Finding the Fourth Proportional to 108,983.72, 150,415.36 and 90,805.60

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Solution

The fourth proportional to 108,983.72, 150,415.36 and 90,805.60 is: 125,326.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,983.72 : 150,415.36 = 90,805.60 : x
  2. Step 2: Convert to fraction form
    108,983.72/150,415.36 = 90,805.60/x
  3. Step 3: Cross multiply
    108,983.72x = 150,415.36 × 90,805.60
  4. Step 4: Simplify right side
    108,983.72x = 13,658,557,014.02
  5. Step 5: Solve for x
    x = 13,658,557,014.02/108,983.72
  6. Step 6: Final answer
    x = 125,326.58

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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.