Home / 209,908.28-289,759.66-142,017.35

Finding the Fourth Proportional to 209,908.28, 289,759.66 and 142,017.35

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Solution

The fourth proportional to 209,908.28, 289,759.66 and 142,017.35 is: 196,042.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,908.28 : 289,759.66 = 142,017.35 : x
  2. Step 2: Convert to fraction form
    209,908.28/289,759.66 = 142,017.35/x
  3. Step 3: Cross multiply
    209,908.28x = 289,759.66 × 142,017.35
  4. Step 4: Simplify right side
    209,908.28x = 41,150,897,601.30
  5. Step 5: Solve for x
    x = 41,150,897,601.30/209,908.28
  6. Step 6: Final answer
    x = 196,042.28

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1.5x scale

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.