Home / 156,628.35-216,147.33-85,008.37

Finding the Fourth Proportional to 156,628.35, 216,147.33 and 85,008.37

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Solution

The fourth proportional to 156,628.35, 216,147.33 and 85,008.37 is: 117,311.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,628.35 : 216,147.33 = 85,008.37 : x
  2. Step 2: Convert to fraction form
    156,628.35/216,147.33 = 85,008.37/x
  3. Step 3: Cross multiply
    156,628.35x = 216,147.33 × 85,008.37
  4. Step 4: Simplify right side
    156,628.35x = 18,374,332,203.15
  5. Step 5: Solve for x
    x = 18,374,332,203.15/156,628.35
  6. Step 6: Final answer
    x = 117,311.66

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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.