Home / 259,638.10-389,165.55-109,852.90

Finding the Fourth Proportional to 259,638.10, 389,165.55 and 109,852.90

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Solution

The fourth proportional to 259,638.10, 389,165.55 and 109,852.90 is: 164,655.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,638.10 : 389,165.55 = 109,852.90 : x
  2. Step 2: Convert to fraction form
    259,638.10/389,165.55 = 109,852.90/x
  3. Step 3: Cross multiply
    259,638.10x = 389,165.55 × 109,852.90
  4. Step 4: Simplify right side
    259,638.10x = 42,750,964,247.60
  5. Step 5: Solve for x
    x = 42,750,964,247.60/259,638.10
  6. Step 6: Final answer
    x = 164,655.97

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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.