Home / 170,741.20-256,111.80-81,973.30

Finding the Fourth Proportional to 170,741.20, 256,111.80 and 81,973.30

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Solution

The fourth proportional to 170,741.20, 256,111.80 and 81,973.30 is: 122,959.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,741.20 : 256,111.80 = 81,973.30 : x
  2. Step 2: Convert to fraction form
    170,741.20/256,111.80 = 81,973.30/x
  3. Step 3: Cross multiply
    170,741.20x = 256,111.80 × 81,973.30
  4. Step 4: Simplify right side
    170,741.20x = 20,994,329,414.94
  5. Step 5: Solve for x
    x = 20,994,329,414.94/170,741.20
  6. Step 6: Final answer
    x = 122,959.95

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1.5x scale

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.