Home / 118,215.90-163,005.42-96,638.58

Finding the Fourth Proportional to 118,215.90, 163,005.42 and 96,638.58

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Solution

The fourth proportional to 118,215.90, 163,005.42 and 96,638.58 is: 133,252.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,215.90 : 163,005.42 = 96,638.58 : x
  2. Step 2: Convert to fraction form
    118,215.90/163,005.42 = 96,638.58/x
  3. Step 3: Cross multiply
    118,215.90x = 163,005.42 × 96,638.58
  4. Step 4: Simplify right side
    118,215.90x = 15,752,612,321.10
  5. Step 5: Solve for x
    x = 15,752,612,321.10/118,215.90
  6. Step 6: Final answer
    x = 133,252.91

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1.5x scale

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.