Home / 136,906.80-205,360.02-51,533.61

Finding the Fourth Proportional to 136,906.80, 205,360.02 and 51,533.61

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Solution

The fourth proportional to 136,906.80, 205,360.02 and 51,533.61 is: 77,300.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,906.80 : 205,360.02 = 51,533.61 : x
  2. Step 2: Convert to fraction form
    136,906.80/205,360.02 = 51,533.61/x
  3. Step 3: Cross multiply
    136,906.80x = 205,360.02 × 51,533.61
  4. Step 4: Simplify right side
    136,906.80x = 10,582,943,180.27
  5. Step 5: Solve for x
    x = 10,582,943,180.27/136,906.80
  6. Step 6: Final answer
    x = 77,300.35

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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.