Home / 129,223.40-193,604.70-105,722.60

Finding the Fourth Proportional to 129,223.40, 193,604.70 and 105,722.60

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Solution

The fourth proportional to 129,223.40, 193,604.70 and 105,722.60 is: 158,395.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,223.40 : 193,604.70 = 105,722.60 : x
  2. Step 2: Convert to fraction form
    129,223.40/193,604.70 = 105,722.60/x
  3. Step 3: Cross multiply
    129,223.40x = 193,604.70 × 105,722.60
  4. Step 4: Simplify right side
    129,223.40x = 20,468,392,256.22
  5. Step 5: Solve for x
    x = 20,468,392,256.22/129,223.40
  6. Step 6: Final answer
    x = 158,395.40

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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.