Home / 101,833.16-140,540.13-56,511.45

Finding the Fourth Proportional to 101,833.16, 140,540.13 and 56,511.45

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Solution

The fourth proportional to 101,833.16, 140,540.13 and 56,511.45 is: 77,991.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,833.16 : 140,540.13 = 56,511.45 : x
  2. Step 2: Convert to fraction form
    101,833.16/140,540.13 = 56,511.45/x
  3. Step 3: Cross multiply
    101,833.16x = 140,540.13 × 56,511.45
  4. Step 4: Simplify right side
    101,833.16x = 7,942,126,529.49
  5. Step 5: Solve for x
    x = 7,942,126,529.49/101,833.16
  6. Step 6: Final answer
    x = 77,991.56

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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.