Home / 121,118.73-167,142.62-67,402.83

Finding the Fourth Proportional to 121,118.73, 167,142.62 and 67,402.83

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Solution

The fourth proportional to 121,118.73, 167,142.62 and 67,402.83 is: 93,015.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,118.73 : 167,142.62 = 67,402.83 : x
  2. Step 2: Convert to fraction form
    121,118.73/167,142.62 = 67,402.83/x
  3. Step 3: Cross multiply
    121,118.73x = 167,142.62 × 67,402.83
  4. Step 4: Simplify right side
    121,118.73x = 11,265,886,396.91
  5. Step 5: Solve for x
    x = 11,265,886,396.91/121,118.73
  6. Step 6: Final answer
    x = 93,015.23

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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.