Home / 128,718.20-193,077.35-35,223.95

Finding the Fourth Proportional to 128,718.20, 193,077.35 and 35,223.95

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Solution

The fourth proportional to 128,718.20, 193,077.35 and 35,223.95 is: 52,835.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,718.20 : 193,077.35 = 35,223.95 : x
  2. Step 2: Convert to fraction form
    128,718.20/193,077.35 = 35,223.95/x
  3. Step 3: Cross multiply
    128,718.20x = 193,077.35 × 35,223.95
  4. Step 4: Simplify right side
    128,718.20x = 6,800,946,922.53
  5. Step 5: Solve for x
    x = 6,800,946,922.53/128,718.20
  6. Step 6: Final answer
    x = 52,835.94

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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.