Home / 209,819.20-289,525.44-119,142.40

Finding the Fourth Proportional to 209,819.20, 289,525.44 and 119,142.40

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Solution

The fourth proportional to 209,819.20, 289,525.44 and 119,142.40 is: 164,402.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,819.20 : 289,525.44 = 119,142.40 : x
  2. Step 2: Convert to fraction form
    209,819.20/289,525.44 = 119,142.40/x
  3. Step 3: Cross multiply
    209,819.20x = 289,525.44 × 119,142.40
  4. Step 4: Simplify right side
    209,819.20x = 34,494,755,782.66
  5. Step 5: Solve for x
    x = 34,494,755,782.66/209,819.20
  6. Step 6: Final answer
    x = 164,402.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.