Home / 109,670.20-164,213.70-70,012.60

Finding the Fourth Proportional to 109,670.20, 164,213.70 and 70,012.60

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Solution

The fourth proportional to 109,670.20, 164,213.70 and 70,012.60 is: 104,832.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,670.20 : 164,213.70 = 70,012.60 : x
  2. Step 2: Convert to fraction form
    109,670.20/164,213.70 = 70,012.60/x
  3. Step 3: Cross multiply
    109,670.20x = 164,213.70 × 70,012.60
  4. Step 4: Simplify right side
    109,670.20x = 11,497,028,092.62
  5. Step 5: Solve for x
    x = 11,497,028,092.62/109,670.20
  6. Step 6: Final answer
    x = 104,832.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.