Home / 109,910.60-151,511.28-85,995.75

Finding the Fourth Proportional to 109,910.60, 151,511.28 and 85,995.75

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Solution

The fourth proportional to 109,910.60, 151,511.28 and 85,995.75 is: 118,544.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,910.60 : 151,511.28 = 85,995.75 : x
  2. Step 2: Convert to fraction form
    109,910.60/151,511.28 = 85,995.75/x
  3. Step 3: Cross multiply
    109,910.60x = 151,511.28 × 85,995.75
  4. Step 4: Simplify right side
    109,910.60x = 13,029,326,157.06
  5. Step 5: Solve for x
    x = 13,029,326,157.06/109,910.60
  6. Step 6: Final answer
    x = 118,544.76

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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.