Home / 140,682.80-211,121.40-101,273.60

Finding the Fourth Proportional to 140,682.80, 211,121.40 and 101,273.60

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Solution

The fourth proportional to 140,682.80, 211,121.40 and 101,273.60 is: 151,980.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,682.80 : 211,121.40 = 101,273.60 : x
  2. Step 2: Convert to fraction form
    140,682.80/211,121.40 = 101,273.60/x
  3. Step 3: Cross multiply
    140,682.80x = 211,121.40 × 101,273.60
  4. Step 4: Simplify right side
    140,682.80x = 21,381,024,215.04
  5. Step 5: Solve for x
    x = 21,381,024,215.04/140,682.80
  6. Step 6: Final answer
    x = 151,980.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.