Home / 133,285.78-183,936.99-72,854.74

Finding the Fourth Proportional to 133,285.78, 183,936.99 and 72,854.74

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Solution

The fourth proportional to 133,285.78, 183,936.99 and 72,854.74 is: 100,540.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,285.78 : 183,936.99 = 72,854.74 : x
  2. Step 2: Convert to fraction form
    133,285.78/183,936.99 = 72,854.74/x
  3. Step 3: Cross multiply
    133,285.78x = 183,936.99 × 72,854.74
  4. Step 4: Simplify right side
    133,285.78x = 13,400,681,582.83
  5. Step 5: Solve for x
    x = 13,400,681,582.83/133,285.78
  6. Step 6: Final answer
    x = 100,540.97

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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.