Home / 125,102.22-172,653.37-71,395.31

Finding the Fourth Proportional to 125,102.22, 172,653.37 and 71,395.31

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Solution

The fourth proportional to 125,102.22, 172,653.37 and 71,395.31 is: 98,532.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,102.22 : 172,653.37 = 71,395.31 : x
  2. Step 2: Convert to fraction form
    125,102.22/172,653.37 = 71,395.31/x
  3. Step 3: Cross multiply
    125,102.22x = 172,653.37 × 71,395.31
  4. Step 4: Simplify right side
    125,102.22x = 12,326,640,873.69
  5. Step 5: Solve for x
    x = 12,326,640,873.69/125,102.22
  6. Step 6: Final answer
    x = 98,532.55

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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.