Home / 136,788.20-205,156.38-48,020.84

Finding the Fourth Proportional to 136,788.20, 205,156.38 and 48,020.84

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Solution

The fourth proportional to 136,788.20, 205,156.38 and 48,020.84 is: 72,022.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,788.20 : 205,156.38 = 48,020.84 : x
  2. Step 2: Convert to fraction form
    136,788.20/205,156.38 = 48,020.84/x
  3. Step 3: Cross multiply
    136,788.20x = 205,156.38 × 48,020.84
  4. Step 4: Simplify right side
    136,788.20x = 9,851,781,698.96
  5. Step 5: Solve for x
    x = 9,851,781,698.96/136,788.20
  6. Step 6: Final answer
    x = 72,022.16

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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.