Home / 147,763.72-221,783.82-72,968.32

Finding the Fourth Proportional to 147,763.72, 221,783.82 and 72,968.32

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Solution

The fourth proportional to 147,763.72, 221,783.82 and 72,968.32 is: 109,520.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,763.72 : 221,783.82 = 72,968.32 : x
  2. Step 2: Convert to fraction form
    147,763.72/221,783.82 = 72,968.32/x
  3. Step 3: Cross multiply
    147,763.72x = 221,783.82 × 72,968.32
  4. Step 4: Simplify right side
    147,763.72x = 16,183,192,748.58
  5. Step 5: Solve for x
    x = 16,183,192,748.58/147,763.72
  6. Step 6: Final answer
    x = 109,520.75

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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.