Home / 156,660.45-216,190.02-85,040.43

Finding the Fourth Proportional to 156,660.45, 216,190.02 and 85,040.43

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Solution

The fourth proportional to 156,660.45, 216,190.02 and 85,040.43 is: 117,355.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,660.45 : 216,190.02 = 85,040.43 : x
  2. Step 2: Convert to fraction form
    156,660.45/216,190.02 = 85,040.43/x
  3. Step 3: Cross multiply
    156,660.45x = 216,190.02 × 85,040.43
  4. Step 4: Simplify right side
    156,660.45x = 18,384,892,262.51
  5. Step 5: Solve for x
    x = 18,384,892,262.51/156,660.45
  6. Step 6: Final answer
    x = 117,355.03

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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.