Home / 156,490.22-215,936.70-92,815.58

Finding the Fourth Proportional to 156,490.22, 215,936.70 and 92,815.58

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Solution

The fourth proportional to 156,490.22, 215,936.70 and 92,815.58 is: 128,073.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,490.22 : 215,936.70 = 92,815.58 : x
  2. Step 2: Convert to fraction form
    156,490.22/215,936.70 = 92,815.58/x
  3. Step 3: Cross multiply
    156,490.22x = 215,936.70 × 92,815.58
  4. Step 4: Simplify right side
    156,490.22x = 20,042,290,053.79
  5. Step 5: Solve for x
    x = 20,042,290,053.79/156,490.22
  6. Step 6: Final answer
    x = 128,073.75

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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.