Home / 121,600.42-167,676.32-79,080.10

Finding the Fourth Proportional to 121,600.42, 167,676.32 and 79,080.10

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Solution

The fourth proportional to 121,600.42, 167,676.32 and 79,080.10 is: 109,044.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,600.42 : 167,676.32 = 79,080.10 : x
  2. Step 2: Convert to fraction form
    121,600.42/167,676.32 = 79,080.10/x
  3. Step 3: Cross multiply
    121,600.42x = 167,676.32 × 79,080.10
  4. Step 4: Simplify right side
    121,600.42x = 13,259,860,153.23
  5. Step 5: Solve for x
    x = 13,259,860,153.23/121,600.42
  6. Step 6: Final answer
    x = 109,044.53

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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.