Home / 156,983.84-217,208.16-136,882.61

Finding the Fourth Proportional to 156,983.84, 217,208.16 and 136,882.61

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Solution

The fourth proportional to 156,983.84, 217,208.16 and 136,882.61 is: 189,395.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,983.84 : 217,208.16 = 136,882.61 : x
  2. Step 2: Convert to fraction form
    156,983.84/217,208.16 = 136,882.61/x
  3. Step 3: Cross multiply
    156,983.84x = 217,208.16 × 136,882.61
  4. Step 4: Simplify right side
    156,983.84x = 29,732,018,768.06
  5. Step 5: Solve for x
    x = 29,732,018,768.06/156,983.84
  6. Step 6: Final answer
    x = 189,395.42

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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.