Home / 121,099.01-167,139.77-80,191.04

Finding the Fourth Proportional to 121,099.01, 167,139.77 and 80,191.04

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Solution

The fourth proportional to 121,099.01, 167,139.77 and 80,191.04 is: 110,678.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,099.01 : 167,139.77 = 80,191.04 : x
  2. Step 2: Convert to fraction form
    121,099.01/167,139.77 = 80,191.04/x
  3. Step 3: Cross multiply
    121,099.01x = 167,139.77 × 80,191.04
  4. Step 4: Simplify right side
    121,099.01x = 13,403,110,745.01
  5. Step 5: Solve for x
    x = 13,403,110,745.01/121,099.01
  6. Step 6: Final answer
    x = 110,678.94

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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.