Home / 124,810.22-172,238.20-68,221.60

Finding the Fourth Proportional to 124,810.22, 172,238.20 and 68,221.60

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Solution

The fourth proportional to 124,810.22, 172,238.20 and 68,221.60 is: 94,145.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,810.22 : 172,238.20 = 68,221.60 : x
  2. Step 2: Convert to fraction form
    124,810.22/172,238.20 = 68,221.60/x
  3. Step 3: Cross multiply
    124,810.22x = 172,238.20 × 68,221.60
  4. Step 4: Simplify right side
    124,810.22x = 11,750,365,585.12
  5. Step 5: Solve for x
    x = 11,750,365,585.12/124,810.22
  6. Step 6: Final answer
    x = 94,145.86

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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.