Home / 121,230.69-167,374.94-89,344.05

Finding the Fourth Proportional to 121,230.69, 167,374.94 and 89,344.05

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Solution

The fourth proportional to 121,230.69, 167,374.94 and 89,344.05 is: 123,351.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,230.69 : 167,374.94 = 89,344.05 : x
  2. Step 2: Convert to fraction form
    121,230.69/167,374.94 = 89,344.05/x
  3. Step 3: Cross multiply
    121,230.69x = 167,374.94 × 89,344.05
  4. Step 4: Simplify right side
    121,230.69x = 14,953,954,436.29
  5. Step 5: Solve for x
    x = 14,953,954,436.29/121,230.69
  6. Step 6: Final answer
    x = 123,351.23

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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.