Home / 156,813.75-216,403.20-85,193.82

Finding the Fourth Proportional to 156,813.75, 216,403.20 and 85,193.82

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Solution

The fourth proportional to 156,813.75, 216,403.20 and 85,193.82 is: 117,567.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,813.75 : 216,403.20 = 85,193.82 : x
  2. Step 2: Convert to fraction form
    156,813.75/216,403.20 = 85,193.82/x
  3. Step 3: Cross multiply
    156,813.75x = 216,403.20 × 85,193.82
  4. Step 4: Simplify right side
    156,813.75x = 18,436,215,268.22
  5. Step 5: Solve for x
    x = 18,436,215,268.22/156,813.75
  6. Step 6: Final answer
    x = 117,567.59

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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.