Home / 121,177-167,237.22-70,918.12

Finding the Fourth Proportional to 121,177, 167,237.22 and 70,918.12

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Solution

The fourth proportional to 121,177, 167,237.22 and 70,918.12 is: 97,874.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,177 : 167,237.22 = 70,918.12 : x
  2. Step 2: Convert to fraction form
    121,177/167,237.22 = 70,918.12/x
  3. Step 3: Cross multiply
    121,177x = 167,237.22 × 70,918.12
  4. Step 4: Simplify right side
    121,177x = 11,860,149,236.43
  5. Step 5: Solve for x
    x = 11,860,149,236.43/121,177
  6. Step 6: Final answer
    x = 97,874.59

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1.5x scale

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.