Home / 156,932.06-216,563.68-85,313.88

Finding the Fourth Proportional to 156,932.06, 216,563.68 and 85,313.88

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Solution

The fourth proportional to 156,932.06, 216,563.68 and 85,313.88 is: 117,731.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,932.06 : 216,563.68 = 85,313.88 : x
  2. Step 2: Convert to fraction form
    156,932.06/216,563.68 = 85,313.88/x
  3. Step 3: Cross multiply
    156,932.06x = 216,563.68 × 85,313.88
  4. Step 4: Simplify right side
    156,932.06x = 18,475,887,807.88
  5. Step 5: Solve for x
    x = 18,475,887,807.88/156,932.06
  6. Step 6: Final answer
    x = 117,731.76

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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.