Home / 128,729.15-193,093.74-35,234.90

Finding the Fourth Proportional to 128,729.15, 193,093.74 and 35,234.90

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Solution

The fourth proportional to 128,729.15, 193,093.74 and 35,234.90 is: 52,852.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,729.15 : 193,093.74 = 35,234.90 : x
  2. Step 2: Convert to fraction form
    128,729.15/193,093.74 = 35,234.90/x
  3. Step 3: Cross multiply
    128,729.15x = 193,093.74 × 35,234.90
  4. Step 4: Simplify right side
    128,729.15x = 6,803,638,619.53
  5. Step 5: Solve for x
    x = 6,803,638,619.53/128,729.15
  6. Step 6: Final answer
    x = 52,852.35

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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.