Home / 101,786.85-140,465.73-56,471.70

Finding the Fourth Proportional to 101,786.85, 140,465.73 and 56,471.70

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Solution

The fourth proportional to 101,786.85, 140,465.73 and 56,471.70 is: 77,930.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,786.85 : 140,465.73 = 56,471.70 : x
  2. Step 2: Convert to fraction form
    101,786.85/140,465.73 = 56,471.70/x
  3. Step 3: Cross multiply
    101,786.85x = 140,465.73 × 56,471.70
  4. Step 4: Simplify right side
    101,786.85x = 7,932,338,564.84
  5. Step 5: Solve for x
    x = 7,932,338,564.84/101,786.85
  6. Step 6: Final answer
    x = 77,930.88

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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.