Home / 156,960.12-216,613.83-85,338.62

Finding the Fourth Proportional to 156,960.12, 216,613.83 and 85,338.62

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Solution

The fourth proportional to 156,960.12, 216,613.83 and 85,338.62 is: 117,772.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,960.12 : 216,613.83 = 85,338.62 : x
  2. Step 2: Convert to fraction form
    156,960.12/216,613.83 = 85,338.62/x
  3. Step 3: Cross multiply
    156,960.12x = 216,613.83 × 85,338.62
  4. Step 4: Simplify right side
    156,960.12x = 18,485,525,325.11
  5. Step 5: Solve for x
    x = 18,485,525,325.11/156,960.12
  6. Step 6: Final answer
    x = 117,772.12

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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.