Home / 110,730.90-152,764.56-68,215.62

Finding the Fourth Proportional to 110,730.90, 152,764.56 and 68,215.62

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Solution

The fourth proportional to 110,730.90, 152,764.56 and 68,215.62 is: 94,110.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,730.90 : 152,764.56 = 68,215.62 : x
  2. Step 2: Convert to fraction form
    110,730.90/152,764.56 = 68,215.62/x
  3. Step 3: Cross multiply
    110,730.90x = 152,764.56 × 68,215.62
  4. Step 4: Simplify right side
    110,730.90x = 10,420,929,174.43
  5. Step 5: Solve for x
    x = 10,420,929,174.43/110,730.90
  6. Step 6: Final answer
    x = 94,110.40

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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.