Home / 121,523.10-167,611.30-89,247.75

Finding the Fourth Proportional to 121,523.10, 167,611.30 and 89,247.75

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Solution

The fourth proportional to 121,523.10, 167,611.30 and 89,247.75 is: 123,095.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,523.10 : 167,611.30 = 89,247.75 : x
  2. Step 2: Convert to fraction form
    121,523.10/167,611.30 = 89,247.75/x
  3. Step 3: Cross multiply
    121,523.10x = 167,611.30 × 89,247.75
  4. Step 4: Simplify right side
    121,523.10x = 14,958,931,399.58
  5. Step 5: Solve for x
    x = 14,958,931,399.58/121,523.10
  6. Step 6: Final answer
    x = 123,095.37

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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.