Home / 112,078.50-154,668.33-61,778.58

Finding the Fourth Proportional to 112,078.50, 154,668.33 and 61,778.58

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Solution

The fourth proportional to 112,078.50, 154,668.33 and 61,778.58 is: 85,254.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,078.50 : 154,668.33 = 61,778.58 : x
  2. Step 2: Convert to fraction form
    112,078.50/154,668.33 = 61,778.58/x
  3. Step 3: Cross multiply
    112,078.50x = 154,668.33 × 61,778.58
  4. Step 4: Simplify right side
    112,078.50x = 9,555,189,798.37
  5. Step 5: Solve for x
    x = 9,555,189,798.37/112,078.50
  6. Step 6: Final answer
    x = 85,254.44

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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.