Home / 156,778.75-216,355.04-85,157.23

Finding the Fourth Proportional to 156,778.75, 216,355.04 and 85,157.23

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Solution

The fourth proportional to 156,778.75, 216,355.04 and 85,157.23 is: 117,517.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,778.75 : 216,355.04 = 85,157.23 : x
  2. Step 2: Convert to fraction form
    156,778.75/216,355.04 = 85,157.23/x
  3. Step 3: Cross multiply
    156,778.75x = 216,355.04 × 85,157.23
  4. Step 4: Simplify right side
    156,778.75x = 18,424,195,902.94
  5. Step 5: Solve for x
    x = 18,424,195,902.94/156,778.75
  6. Step 6: Final answer
    x = 117,517.18

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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.