Home / 156,634.24-216,153.93-85,012.73

Finding the Fourth Proportional to 156,634.24, 216,153.93 and 85,012.73

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Solution

The fourth proportional to 156,634.24, 216,153.93 and 85,012.73 is: 117,316.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,634.24 : 216,153.93 = 85,012.73 : x
  2. Step 2: Convert to fraction form
    156,634.24/216,153.93 = 85,012.73/x
  3. Step 3: Cross multiply
    156,634.24x = 216,153.93 × 85,012.73
  4. Step 4: Simplify right side
    156,634.24x = 18,375,835,689.53
  5. Step 5: Solve for x
    x = 18,375,835,689.53/156,634.24
  6. Step 6: Final answer
    x = 117,316.85

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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.