Home / 259,932.90-390,045.15-110,147.70

Finding the Fourth Proportional to 259,932.90, 390,045.15 and 110,147.70

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Solution

The fourth proportional to 259,932.90, 390,045.15 and 110,147.70 is: 165,283.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,932.90 : 390,045.15 = 110,147.70 : x
  2. Step 2: Convert to fraction form
    259,932.90/390,045.15 = 110,147.70/x
  3. Step 3: Cross multiply
    259,932.90x = 390,045.15 × 110,147.70
  4. Step 4: Simplify right side
    259,932.90x = 42,962,576,168.66
  5. Step 5: Solve for x
    x = 42,962,576,168.66/259,932.90
  6. Step 6: Final answer
    x = 165,283.33

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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.