Home / 124,861.13-172,308.93-68,272.46

Finding the Fourth Proportional to 124,861.13, 172,308.93 and 68,272.46

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Solution

The fourth proportional to 124,861.13, 172,308.93 and 68,272.46 is: 94,216.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,861.13 : 172,308.93 = 68,272.46 : x
  2. Step 2: Convert to fraction form
    124,861.13/172,308.93 = 68,272.46/x
  3. Step 3: Cross multiply
    124,861.13x = 172,308.93 × 68,272.46
  4. Step 4: Simplify right side
    124,861.13x = 11,763,954,531.07
  5. Step 5: Solve for x
    x = 11,763,954,531.07/124,861.13
  6. Step 6: Final answer
    x = 94,216.31

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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.