Home / 128,717.20-193,075.85-35,222.95

Finding the Fourth Proportional to 128,717.20, 193,075.85 and 35,222.95

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Solution

The fourth proportional to 128,717.20, 193,075.85 and 35,222.95 is: 52,834.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,717.20 : 193,075.85 = 35,222.95 : x
  2. Step 2: Convert to fraction form
    128,717.20/193,075.85 = 35,222.95/x
  3. Step 3: Cross multiply
    128,717.20x = 193,075.85 × 35,222.95
  4. Step 4: Simplify right side
    128,717.20x = 6,800,701,340.16
  5. Step 5: Solve for x
    x = 6,800,701,340.16/128,717.20
  6. Step 6: Final answer
    x = 52,834.44

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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.