Home / 114,638.20-171,665.70-109,389.40

Finding the Fourth Proportional to 114,638.20, 171,665.70 and 109,389.40

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Solution

The fourth proportional to 114,638.20, 171,665.70 and 109,389.40 is: 163,805.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,638.20 : 171,665.70 = 109,389.40 : x
  2. Step 2: Convert to fraction form
    114,638.20/171,665.70 = 109,389.40/x
  3. Step 3: Cross multiply
    114,638.20x = 171,665.70 × 109,389.40
  4. Step 4: Simplify right side
    114,638.20x = 18,778,407,923.58
  5. Step 5: Solve for x
    x = 18,778,407,923.58/114,638.20
  6. Step 6: Final answer
    x = 163,805.85

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1.5x scale

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.