Home / 140,145.93-210,093.87-51,378.71

Finding the Fourth Proportional to 140,145.93, 210,093.87 and 51,378.71

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Solution

The fourth proportional to 140,145.93, 210,093.87 and 51,378.71 is: 77,022.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,145.93 : 210,093.87 = 51,378.71 : x
  2. Step 2: Convert to fraction form
    140,145.93/210,093.87 = 51,378.71/x
  3. Step 3: Cross multiply
    140,145.93x = 210,093.87 × 51,378.71
  4. Step 4: Simplify right side
    140,145.93x = 10,794,352,019.51
  5. Step 5: Solve for x
    x = 10,794,352,019.51/140,145.93
  6. Step 6: Final answer
    x = 77,022.23

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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.