Home / 112,102.41-154,648.53-66,754.56

Finding the Fourth Proportional to 112,102.41, 154,648.53 and 66,754.56

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Solution

The fourth proportional to 112,102.41, 154,648.53 and 66,754.56 is: 92,089.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,102.41 : 154,648.53 = 66,754.56 : x
  2. Step 2: Convert to fraction form
    112,102.41/154,648.53 = 66,754.56/x
  3. Step 3: Cross multiply
    112,102.41x = 154,648.53 × 66,754.56
  4. Step 4: Simplify right side
    112,102.41x = 10,323,494,574.80
  5. Step 5: Solve for x
    x = 10,323,494,574.80/112,102.41
  6. Step 6: Final answer
    x = 92,089.85

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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.