Home / 121,445.44-167,546.40-73,681.28

Finding the Fourth Proportional to 121,445.44, 167,546.40 and 73,681.28

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Solution

The fourth proportional to 121,445.44, 167,546.40 and 73,681.28 is: 101,650.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,445.44 : 167,546.40 = 73,681.28 : x
  2. Step 2: Convert to fraction form
    121,445.44/167,546.40 = 73,681.28/x
  3. Step 3: Cross multiply
    121,445.44x = 167,546.40 × 73,681.28
  4. Step 4: Simplify right side
    121,445.44x = 12,345,033,211.39
  5. Step 5: Solve for x
    x = 12,345,033,211.39/121,445.44
  6. Step 6: Final answer
    x = 101,650.86

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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.