Home / 124,756.43-172,163.86-68,167.80

Finding the Fourth Proportional to 124,756.43, 172,163.86 and 68,167.80

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Solution

The fourth proportional to 124,756.43, 172,163.86 and 68,167.80 is: 94,071.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,756.43 : 172,163.86 = 68,167.80 : x
  2. Step 2: Convert to fraction form
    124,756.43/172,163.86 = 68,167.80/x
  3. Step 3: Cross multiply
    124,756.43x = 172,163.86 × 68,167.80
  4. Step 4: Simplify right side
    124,756.43x = 11,736,031,405.29
  5. Step 5: Solve for x
    x = 11,736,031,405.29/124,756.43
  6. Step 6: Final answer
    x = 94,071.56

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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.