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Finding the Fourth Proportional to 110,087.32, 151,959.26 and 65,375

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Solution

The fourth proportional to 110,087.32, 151,959.26 and 65,375 is: 90,240.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,087.32 : 151,959.26 = 65,375 : x
  2. Step 2: Convert to fraction form
    110,087.32/151,959.26 = 65,375/x
  3. Step 3: Cross multiply
    110,087.32x = 151,959.26 × 65,375
  4. Step 4: Simplify right side
    110,087.32x = 9,934,336,622.50
  5. Step 5: Solve for x
    x = 9,934,336,622.50/110,087.32
  6. Step 6: Final answer
    x = 90,240.52

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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.