Home / 118,670.31-163,732.64-67,664.44

Finding the Fourth Proportional to 118,670.31, 163,732.64 and 67,664.44

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Solution

The fourth proportional to 118,670.31, 163,732.64 and 67,664.44 is: 93,358.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,670.31 : 163,732.64 = 67,664.44 : x
  2. Step 2: Convert to fraction form
    118,670.31/163,732.64 = 67,664.44/x
  3. Step 3: Cross multiply
    118,670.31x = 163,732.64 × 67,664.44
  4. Step 4: Simplify right side
    118,670.31x = 11,078,877,769.15
  5. Step 5: Solve for x
    x = 11,078,877,769.15/118,670.31
  6. Step 6: Final answer
    x = 93,358.46

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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.