Home / 112,100.46-154,611.11-71,817.94

Finding the Fourth Proportional to 112,100.46, 154,611.11 and 71,817.94

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Solution

The fourth proportional to 112,100.46, 154,611.11 and 71,817.94 is: 99,052.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,100.46 : 154,611.11 = 71,817.94 : x
  2. Step 2: Convert to fraction form
    112,100.46/154,611.11 = 71,817.94/x
  3. Step 3: Cross multiply
    112,100.46x = 154,611.11 × 71,817.94
  4. Step 4: Simplify right side
    112,100.46x = 11,103,851,421.31
  5. Step 5: Solve for x
    x = 11,103,851,421.31/112,100.46
  6. Step 6: Final answer
    x = 99,052.68

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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.