Home / 121,105.02-167,148.05-80,197.04

Finding the Fourth Proportional to 121,105.02, 167,148.05 and 80,197.04

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Solution

The fourth proportional to 121,105.02, 167,148.05 and 80,197.04 is: 110,687.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,105.02 : 167,148.05 = 80,197.04 : x
  2. Step 2: Convert to fraction form
    121,105.02/167,148.05 = 80,197.04/x
  3. Step 3: Cross multiply
    121,105.02x = 167,148.05 × 80,197.04
  4. Step 4: Simplify right side
    121,105.02x = 13,404,778,851.77
  5. Step 5: Solve for x
    x = 13,404,778,851.77/121,105.02
  6. Step 6: Final answer
    x = 110,687.23

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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.