Home / 101,966.41-140,709.75-56,647.27

Finding the Fourth Proportional to 101,966.41, 140,709.75 and 56,647.27

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Solution

The fourth proportional to 101,966.41, 140,709.75 and 56,647.27 is: 78,171.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,966.41 : 140,709.75 = 56,647.27 : x
  2. Step 2: Convert to fraction form
    101,966.41/140,709.75 = 56,647.27/x
  3. Step 3: Cross multiply
    101,966.41x = 140,709.75 × 56,647.27
  4. Step 4: Simplify right side
    101,966.41x = 7,970,823,199.88
  5. Step 5: Solve for x
    x = 7,970,823,199.88/101,966.41
  6. Step 6: Final answer
    x = 78,171.07

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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.