Home / 101,764.36-152,734.38-70,621.48

Finding the Fourth Proportional to 101,764.36, 152,734.38 and 70,621.48

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Solution

The fourth proportional to 101,764.36, 152,734.38 and 70,621.48 is: 105,993.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,764.36 : 152,734.38 = 70,621.48 : x
  2. Step 2: Convert to fraction form
    101,764.36/152,734.38 = 70,621.48/x
  3. Step 3: Cross multiply
    101,764.36x = 152,734.38 × 70,621.48
  4. Step 4: Simplify right side
    101,764.36x = 10,786,327,962.48
  5. Step 5: Solve for x
    x = 10,786,327,962.48/101,764.36
  6. Step 6: Final answer
    x = 105,993.18

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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.