Home / 121,266.86-167,352.48-70,279.79

Finding the Fourth Proportional to 121,266.86, 167,352.48 and 70,279.79

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Solution

The fourth proportional to 121,266.86, 167,352.48 and 70,279.79 is: 96,988.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,266.86 : 167,352.48 = 70,279.79 : x
  2. Step 2: Convert to fraction form
    121,266.86/167,352.48 = 70,279.79/x
  3. Step 3: Cross multiply
    121,266.86x = 167,352.48 × 70,279.79
  4. Step 4: Simplify right side
    121,266.86x = 11,761,496,313.62
  5. Step 5: Solve for x
    x = 11,761,496,313.62/121,266.86
  6. Step 6: Final answer
    x = 96,988.55

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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.