Home / 105,481.02-158,330.88-70,663.98

Finding the Fourth Proportional to 105,481.02, 158,330.88 and 70,663.98

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Solution

The fourth proportional to 105,481.02, 158,330.88 and 70,663.98 is: 106,069.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,481.02 : 158,330.88 = 70,663.98 : x
  2. Step 2: Convert to fraction form
    105,481.02/158,330.88 = 70,663.98/x
  3. Step 3: Cross multiply
    105,481.02x = 158,330.88 × 70,663.98
  4. Step 4: Simplify right side
    105,481.02x = 11,188,290,137.70
  5. Step 5: Solve for x
    x = 11,188,290,137.70/105,481.02
  6. Step 6: Final answer
    x = 106,069.23

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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.