Home / 105,649.03-145,796.11-57,251.06

Finding the Fourth Proportional to 105,649.03, 145,796.11 and 57,251.06

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Solution

The fourth proportional to 105,649.03, 145,796.11 and 57,251.06 is: 79,006.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,649.03 : 145,796.11 = 57,251.06 : x
  2. Step 2: Convert to fraction form
    105,649.03/145,796.11 = 57,251.06/x
  3. Step 3: Cross multiply
    105,649.03x = 145,796.11 × 57,251.06
  4. Step 4: Simplify right side
    105,649.03x = 8,346,982,205.87
  5. Step 5: Solve for x
    x = 8,346,982,205.87/105,649.03
  6. Step 6: Final answer
    x = 79,006.71

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1.5x scale

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.