Home / 112,102.33-154,613.70-71,819.82

Finding the Fourth Proportional to 112,102.33, 154,613.70 and 71,819.82

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Solution

The fourth proportional to 112,102.33, 154,613.70 and 71,819.82 is: 99,055.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,102.33 : 154,613.70 = 71,819.82 : x
  2. Step 2: Convert to fraction form
    112,102.33/154,613.70 = 71,819.82/x
  3. Step 3: Cross multiply
    112,102.33x = 154,613.70 × 71,819.82
  4. Step 4: Simplify right side
    112,102.33x = 11,104,328,103.53
  5. Step 5: Solve for x
    x = 11,104,328,103.53/112,102.33
  6. Step 6: Final answer
    x = 99,055.28

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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.