Home / 121,102.02-167,143.91-80,194.04

Finding the Fourth Proportional to 121,102.02, 167,143.91 and 80,194.04

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Solution

The fourth proportional to 121,102.02, 167,143.91 and 80,194.04 is: 110,683.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,102.02 : 167,143.91 = 80,194.04 : x
  2. Step 2: Convert to fraction form
    121,102.02/167,143.91 = 80,194.04/x
  3. Step 3: Cross multiply
    121,102.02x = 167,143.91 × 80,194.04
  4. Step 4: Simplify right side
    121,102.02x = 13,403,944,167.61
  5. Step 5: Solve for x
    x = 13,403,944,167.61/121,102.02
  6. Step 6: Final answer
    x = 110,683.08

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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.