Home / 125,054.25-172,558.79-71,336.06

Finding the Fourth Proportional to 125,054.25, 172,558.79 and 71,336.06

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Solution

The fourth proportional to 125,054.25, 172,558.79 and 71,336.06 is: 98,434.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,054.25 : 172,558.79 = 71,336.06 : x
  2. Step 2: Convert to fraction form
    125,054.25/172,558.79 = 71,336.06/x
  3. Step 3: Cross multiply
    125,054.25x = 172,558.79 × 71,336.06
  4. Step 4: Simplify right side
    125,054.25x = 12,309,664,196.97
  5. Step 5: Solve for x
    x = 12,309,664,196.97/125,054.25
  6. Step 6: Final answer
    x = 98,434.59

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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.