Home / 199,135.55-298,758.69-86,825.58

Finding the Fourth Proportional to 199,135.55, 298,758.69 and 86,825.58

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Solution

The fourth proportional to 199,135.55, 298,758.69 and 86,825.58 is: 130,262.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,135.55 : 298,758.69 = 86,825.58 : x
  2. Step 2: Convert to fraction form
    199,135.55/298,758.69 = 86,825.58/x
  3. Step 3: Cross multiply
    199,135.55x = 298,758.69 × 86,825.58
  4. Step 4: Simplify right side
    199,135.55x = 25,939,896,539.29
  5. Step 5: Solve for x
    x = 25,939,896,539.29/199,135.55
  6. Step 6: Final answer
    x = 130,262.51

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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.