Home / 104,291.28-143,921.34-56,544.48

Finding the Fourth Proportional to 104,291.28, 143,921.34 and 56,544.48

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Solution

The fourth proportional to 104,291.28, 143,921.34 and 56,544.48 is: 78,031.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,291.28 : 143,921.34 = 56,544.48 : x
  2. Step 2: Convert to fraction form
    104,291.28/143,921.34 = 56,544.48/x
  3. Step 3: Cross multiply
    104,291.28x = 143,921.34 × 56,544.48
  4. Step 4: Simplify right side
    104,291.28x = 8,137,957,331.20
  5. Step 5: Solve for x
    x = 8,137,957,331.20/104,291.28
  6. Step 6: Final answer
    x = 78,031.04

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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.