Home / 121,268.42-167,347.98-70,279.84

Finding the Fourth Proportional to 121,268.42, 167,347.98 and 70,279.84

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Solution

The fourth proportional to 121,268.42, 167,347.98 and 70,279.84 is: 96,984.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,268.42 : 167,347.98 = 70,279.84 : x
  2. Step 2: Convert to fraction form
    121,268.42/167,347.98 = 70,279.84/x
  3. Step 3: Cross multiply
    121,268.42x = 167,347.98 × 70,279.84
  4. Step 4: Simplify right side
    121,268.42x = 11,761,189,755.90
  5. Step 5: Solve for x
    x = 11,761,189,755.90/121,268.42
  6. Step 6: Final answer
    x = 96,984.77

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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.