Home / 124,697.88-172,087.74-68,109.66

Finding the Fourth Proportional to 124,697.88, 172,087.74 and 68,109.66

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Solution

The fourth proportional to 124,697.88, 172,087.74 and 68,109.66 is: 93,993.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,697.88 : 172,087.74 = 68,109.66 : x
  2. Step 2: Convert to fraction form
    124,697.88/172,087.74 = 68,109.66/x
  3. Step 3: Cross multiply
    124,697.88x = 172,087.74 × 68,109.66
  4. Step 4: Simplify right side
    124,697.88x = 11,720,837,461.57
  5. Step 5: Solve for x
    x = 11,720,837,461.57/124,697.88
  6. Step 6: Final answer
    x = 93,993.88

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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.