Home / 220,166.18-330,145.18-85,293.42

Finding the Fourth Proportional to 220,166.18, 330,145.18 and 85,293.42

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Solution

The fourth proportional to 220,166.18, 330,145.18 and 85,293.42 is: 127,899.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,166.18 : 330,145.18 = 85,293.42 : x
  2. Step 2: Convert to fraction form
    220,166.18/330,145.18 = 85,293.42/x
  3. Step 3: Cross multiply
    220,166.18x = 330,145.18 × 85,293.42
  4. Step 4: Simplify right side
    220,166.18x = 28,159,211,498.72
  5. Step 5: Solve for x
    x = 28,159,211,498.72/220,166.18
  6. Step 6: Final answer
    x = 127,899.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.