Home / 156,757.90-216,322.34-85,136.38

Finding the Fourth Proportional to 156,757.90, 216,322.34 and 85,136.38

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Solution

The fourth proportional to 156,757.90, 216,322.34 and 85,136.38 is: 117,486.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,757.90 : 216,322.34 = 85,136.38 : x
  2. Step 2: Convert to fraction form
    156,757.90/216,322.34 = 85,136.38/x
  3. Step 3: Cross multiply
    156,757.90x = 216,322.34 × 85,136.38
  4. Step 4: Simplify right side
    156,757.90x = 18,416,899,433.44
  5. Step 5: Solve for x
    x = 18,416,899,433.44/156,757.90
  6. Step 6: Final answer
    x = 117,486.26

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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.