Home / 101,982.27-140,735.69-56,660.30

Finding the Fourth Proportional to 101,982.27, 140,735.69 and 56,660.30

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Solution

The fourth proportional to 101,982.27, 140,735.69 and 56,660.30 is: 78,191.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,982.27 : 140,735.69 = 56,660.30 : x
  2. Step 2: Convert to fraction form
    101,982.27/140,735.69 = 56,660.30/x
  3. Step 3: Cross multiply
    101,982.27x = 140,735.69 × 56,660.30
  4. Step 4: Simplify right side
    101,982.27x = 7,974,126,051.13
  5. Step 5: Solve for x
    x = 7,974,126,051.13/101,982.27
  6. Step 6: Final answer
    x = 78,191.30

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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.