Home / 86,623.43-120,977.55-86,623.43

Finding the Fourth Proportional to 86,623.43, 120,977.55 and 86,623.43

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Solution

The fourth proportional to 86,623.43, 120,977.55 and 86,623.43 is: 120,977.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,623.43 : 120,977.55 = 86,623.43 : x
  2. Step 2: Convert to fraction form
    86,623.43/120,977.55 = 86,623.43/x
  3. Step 3: Cross multiply
    86,623.43x = 120,977.55 × 86,623.43
  4. Step 4: Simplify right side
    86,623.43x = 10,479,489,729.11
  5. Step 5: Solve for x
    x = 10,479,489,729.11/86,623.43
  6. Step 6: Final answer
    x = 120,977.55

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.