Home / 156,873.94-217,056.04-136,772.69

Finding the Fourth Proportional to 156,873.94, 217,056.04 and 136,772.69

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Solution

The fourth proportional to 156,873.94, 217,056.04 and 136,772.69 is: 189,243.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,873.94 : 217,056.04 = 136,772.69 : x
  2. Step 2: Convert to fraction form
    156,873.94/217,056.04 = 136,772.69/x
  3. Step 3: Cross multiply
    156,873.94x = 217,056.04 × 136,772.69
  4. Step 4: Simplify right side
    156,873.94x = 29,687,337,044.34
  5. Step 5: Solve for x
    x = 29,687,337,044.34/156,873.94
  6. Step 6: Final answer
    x = 189,243.27

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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.