Home / 156,845.39-216,447.95-85,225.42

Finding the Fourth Proportional to 156,845.39, 216,447.95 and 85,225.42

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Solution

The fourth proportional to 156,845.39, 216,447.95 and 85,225.42 is: 117,611.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,845.39 : 216,447.95 = 85,225.42 : x
  2. Step 2: Convert to fraction form
    156,845.39/216,447.95 = 85,225.42/x
  3. Step 3: Cross multiply
    156,845.39x = 216,447.95 × 85,225.42
  4. Step 4: Simplify right side
    156,845.39x = 18,446,866,712.99
  5. Step 5: Solve for x
    x = 18,446,866,712.99/156,845.39
  6. Step 6: Final answer
    x = 117,611.79

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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.