Home / 112,012.56-154,577.25-61,711.56

Finding the Fourth Proportional to 112,012.56, 154,577.25 and 61,711.56

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Solution

The fourth proportional to 112,012.56, 154,577.25 and 61,711.56 is: 85,161.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,012.56 : 154,577.25 = 61,711.56 : x
  2. Step 2: Convert to fraction form
    112,012.56/154,577.25 = 61,711.56/x
  3. Step 3: Cross multiply
    112,012.56x = 154,577.25 × 61,711.56
  4. Step 4: Simplify right side
    112,012.56x = 9,539,203,238.01
  5. Step 5: Solve for x
    x = 9,539,203,238.01/112,012.56
  6. Step 6: Final answer
    x = 85,161.91

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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.