Home / 156,834.54-216,433.98-85,215.96

Finding the Fourth Proportional to 156,834.54, 216,433.98 and 85,215.96

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Solution

The fourth proportional to 156,834.54, 216,433.98 and 85,215.96 is: 117,599.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,834.54 : 216,433.98 = 85,215.96 : x
  2. Step 2: Convert to fraction form
    156,834.54/216,433.98 = 85,215.96/x
  3. Step 3: Cross multiply
    156,834.54x = 216,433.98 × 85,215.96
  4. Step 4: Simplify right side
    156,834.54x = 18,443,629,382.32
  5. Step 5: Solve for x
    x = 18,443,629,382.32/156,834.54
  6. Step 6: Final answer
    x = 117,599.28

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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.