Home / 121,070.54-167,082.76-100,893.66

Finding the Fourth Proportional to 121,070.54, 167,082.76 and 100,893.66

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Solution

The fourth proportional to 121,070.54, 167,082.76 and 100,893.66 is: 139,237.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,070.54 : 167,082.76 = 100,893.66 : x
  2. Step 2: Convert to fraction form
    121,070.54/167,082.76 = 100,893.66/x
  3. Step 3: Cross multiply
    121,070.54x = 167,082.76 × 100,893.66
  4. Step 4: Simplify right side
    121,070.54x = 16,857,591,179.30
  5. Step 5: Solve for x
    x = 16,857,591,179.30/121,070.54
  6. Step 6: Final answer
    x = 139,237.76

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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.