Home / 121,733.26-167,988.76-68,018.72

Finding the Fourth Proportional to 121,733.26, 167,988.76 and 68,018.72

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Solution

The fourth proportional to 121,733.26, 167,988.76 and 68,018.72 is: 93,864.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,733.26 : 167,988.76 = 68,018.72 : x
  2. Step 2: Convert to fraction form
    121,733.26/167,988.76 = 68,018.72/x
  3. Step 3: Cross multiply
    121,733.26x = 167,988.76 × 68,018.72
  4. Step 4: Simplify right side
    121,733.26x = 11,426,379,419.60
  5. Step 5: Solve for x
    x = 11,426,379,419.60/121,733.26
  6. Step 6: Final answer
    x = 93,864.07

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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.