Home / 112,100.64-154,699.94-61,801.44

Finding the Fourth Proportional to 112,100.64, 154,699.94 and 61,801.44

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Solution

The fourth proportional to 112,100.64, 154,699.94 and 61,801.44 is: 85,286.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,100.64 : 154,699.94 = 61,801.44 : x
  2. Step 2: Convert to fraction form
    112,100.64/154,699.94 = 61,801.44/x
  3. Step 3: Cross multiply
    112,100.64x = 154,699.94 × 61,801.44
  4. Step 4: Simplify right side
    112,100.64x = 9,560,679,059.91
  5. Step 5: Solve for x
    x = 9,560,679,059.91/112,100.64
  6. Step 6: Final answer
    x = 85,286.57

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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.