Home / 101,930.33-140,659.09-56,611.24

Finding the Fourth Proportional to 101,930.33, 140,659.09 and 56,611.24

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Solution

The fourth proportional to 101,930.33, 140,659.09 and 56,611.24 is: 78,120.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,930.33 : 140,659.09 = 56,611.24 : x
  2. Step 2: Convert to fraction form
    101,930.33/140,659.09 = 56,611.24/x
  3. Step 3: Cross multiply
    101,930.33x = 140,659.09 × 56,611.24
  4. Step 4: Simplify right side
    101,930.33x = 7,962,885,009.00
  5. Step 5: Solve for x
    x = 7,962,885,009.00/101,930.33
  6. Step 6: Final answer
    x = 78,120.86

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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.