Home / 156,984.09-217,208.51-136,882.86

Finding the Fourth Proportional to 156,984.09, 217,208.51 and 136,882.86

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Solution

The fourth proportional to 156,984.09, 217,208.51 and 136,882.86 is: 189,395.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,984.09 : 217,208.51 = 136,882.86 : x
  2. Step 2: Convert to fraction form
    156,984.09/217,208.51 = 136,882.86/x
  3. Step 3: Cross multiply
    156,984.09x = 217,208.51 × 136,882.86
  4. Step 4: Simplify right side
    156,984.09x = 29,732,122,065.14
  5. Step 5: Solve for x
    x = 29,732,122,065.14/156,984.09
  6. Step 6: Final answer
    x = 189,395.77

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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.