Home / 156,975.54-216,630.38-85,359.80

Finding the Fourth Proportional to 156,975.54, 216,630.38 and 85,359.80

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Solution

The fourth proportional to 156,975.54, 216,630.38 and 85,359.80 is: 117,798.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,975.54 : 216,630.38 = 85,359.80 : x
  2. Step 2: Convert to fraction form
    156,975.54/216,630.38 = 85,359.80/x
  3. Step 3: Cross multiply
    156,975.54x = 216,630.38 × 85,359.80
  4. Step 4: Simplify right side
    156,975.54x = 18,491,525,910.72
  5. Step 5: Solve for x
    x = 18,491,525,910.72/156,975.54
  6. Step 6: Final answer
    x = 117,798.77

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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.