Home / 205,173.63-283,144.40-128,695.95

Finding the Fourth Proportional to 205,173.63, 283,144.40 and 128,695.95

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Solution

The fourth proportional to 205,173.63, 283,144.40 and 128,695.95 is: 177,603.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,173.63 : 283,144.40 = 128,695.95 : x
  2. Step 2: Convert to fraction form
    205,173.63/283,144.40 = 128,695.95/x
  3. Step 3: Cross multiply
    205,173.63x = 283,144.40 × 128,695.95
  4. Step 4: Simplify right side
    205,173.63x = 36,439,536,901.70
  5. Step 5: Solve for x
    x = 36,439,536,901.70/205,173.63
  6. Step 6: Final answer
    x = 177,603.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.