Home / 125,355.72-172,998.54-82,840.44

Finding the Fourth Proportional to 125,355.72, 172,998.54 and 82,840.44

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Solution

The fourth proportional to 125,355.72, 172,998.54 and 82,840.44 is: 114,324.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,355.72 : 172,998.54 = 82,840.44 : x
  2. Step 2: Convert to fraction form
    125,355.72/172,998.54 = 82,840.44/x
  3. Step 3: Cross multiply
    125,355.72x = 172,998.54 × 82,840.44
  4. Step 4: Simplify right side
    125,355.72x = 14,331,275,172.96
  5. Step 5: Solve for x
    x = 14,331,275,172.96/125,355.72
  6. Step 6: Final answer
    x = 114,324.86

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1.5x scale

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.