Home / 156,984.84-217,209.54-136,883.61

Finding the Fourth Proportional to 156,984.84, 217,209.54 and 136,883.61

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Solution

The fourth proportional to 156,984.84, 217,209.54 and 136,883.61 is: 189,396.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,984.84 : 217,209.54 = 136,883.61 : x
  2. Step 2: Convert to fraction form
    156,984.84/217,209.54 = 136,883.61/x
  3. Step 3: Cross multiply
    156,984.84x = 217,209.54 × 136,883.61
  4. Step 4: Simplify right side
    156,984.84x = 29,732,425,961.64
  5. Step 5: Solve for x
    x = 29,732,425,961.64/156,984.84
  6. Step 6: Final answer
    x = 189,396.80

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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.