Home / 124,999.39-172,494.93-68,409.55

Finding the Fourth Proportional to 124,999.39, 172,494.93 and 68,409.55

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Solution

The fourth proportional to 124,999.39, 172,494.93 and 68,409.55 is: 94,402.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,999.39 : 172,494.93 = 68,409.55 : x
  2. Step 2: Convert to fraction form
    124,999.39/172,494.93 = 68,409.55/x
  3. Step 3: Cross multiply
    124,999.39x = 172,494.93 × 68,409.55
  4. Step 4: Simplify right side
    124,999.39x = 11,800,300,538.58
  5. Step 5: Solve for x
    x = 11,800,300,538.58/124,999.39
  6. Step 6: Final answer
    x = 94,402.86

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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.