Home / 156,635.53-216,157.24-85,015.55

Finding the Fourth Proportional to 156,635.53, 216,157.24 and 85,015.55

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Solution

The fourth proportional to 156,635.53, 216,157.24 and 85,015.55 is: 117,321.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,635.53 : 216,157.24 = 85,015.55 : x
  2. Step 2: Convert to fraction form
    156,635.53/216,157.24 = 85,015.55/x
  3. Step 3: Cross multiply
    156,635.53x = 216,157.24 × 85,015.55
  4. Step 4: Simplify right side
    156,635.53x = 18,376,727,291.74
  5. Step 5: Solve for x
    x = 18,376,727,291.74/156,635.53
  6. Step 6: Final answer
    x = 117,321.58

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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.