Home / 140,155.12-210,286.95-51,469.84

Finding the Fourth Proportional to 140,155.12, 210,286.95 and 51,469.84

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Solution

The fourth proportional to 140,155.12, 210,286.95 and 51,469.84 is: 77,224.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,155.12 : 210,286.95 = 51,469.84 : x
  2. Step 2: Convert to fraction form
    140,155.12/210,286.95 = 51,469.84/x
  3. Step 3: Cross multiply
    140,155.12x = 210,286.95 × 51,469.84
  4. Step 4: Simplify right side
    140,155.12x = 10,823,435,670.59
  5. Step 5: Solve for x
    x = 10,823,435,670.59/140,155.12
  6. Step 6: Final answer
    x = 77,224.69

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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.