Home / 140,078.97-210,021.26-51,320.25

Finding the Fourth Proportional to 140,078.97, 210,021.26 and 51,320.25

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Solution

The fourth proportional to 140,078.97, 210,021.26 and 51,320.25 is: 76,944.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,078.97 : 210,021.26 = 51,320.25 : x
  2. Step 2: Convert to fraction form
    140,078.97/210,021.26 = 51,320.25/x
  3. Step 3: Cross multiply
    140,078.97x = 210,021.26 × 51,320.25
  4. Step 4: Simplify right side
    140,078.97x = 10,778,343,311.91
  5. Step 5: Solve for x
    x = 10,778,343,311.91/140,078.97
  6. Step 6: Final answer
    x = 76,944.76

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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.