Home / 156,979.52-216,630.58-85,359.52

Finding the Fourth Proportional to 156,979.52, 216,630.58 and 85,359.52

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Solution

The fourth proportional to 156,979.52, 216,630.58 and 85,359.52 is: 117,795.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,979.52 : 216,630.58 = 85,359.52 : x
  2. Step 2: Convert to fraction form
    156,979.52/216,630.58 = 85,359.52/x
  3. Step 3: Cross multiply
    156,979.52x = 216,630.58 × 85,359.52
  4. Step 4: Simplify right side
    156,979.52x = 18,491,482,326.12
  5. Step 5: Solve for x
    x = 18,491,482,326.12/156,979.52
  6. Step 6: Final answer
    x = 117,795.51

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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.