Home / 129,234.40-193,621.20-105,733.60

Finding the Fourth Proportional to 129,234.40, 193,621.20 and 105,733.60

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Solution

The fourth proportional to 129,234.40, 193,621.20 and 105,733.60 is: 158,411.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,234.40 : 193,621.20 = 105,733.60 : x
  2. Step 2: Convert to fraction form
    129,234.40/193,621.20 = 105,733.60/x
  3. Step 3: Cross multiply
    129,234.40x = 193,621.20 × 105,733.60
  4. Step 4: Simplify right side
    129,234.40x = 20,472,266,512.32
  5. Step 5: Solve for x
    x = 20,472,266,512.32/129,234.40
  6. Step 6: Final answer
    x = 158,411.90

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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.