Home / 101,966.22-140,713.29-56,648.43

Finding the Fourth Proportional to 101,966.22, 140,713.29 and 56,648.43

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Solution

The fourth proportional to 101,966.22, 140,713.29 and 56,648.43 is: 78,174.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,966.22 : 140,713.29 = 56,648.43 : x
  2. Step 2: Convert to fraction form
    101,966.22/140,713.29 = 56,648.43/x
  3. Step 3: Cross multiply
    101,966.22x = 140,713.29 × 56,648.43
  4. Step 4: Simplify right side
    101,966.22x = 7,971,186,958.63
  5. Step 5: Solve for x
    x = 7,971,186,958.63/101,966.22
  6. Step 6: Final answer
    x = 78,174.78

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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.