Home / 121,278.21-167,364.03-67,563.36

Finding the Fourth Proportional to 121,278.21, 167,364.03 and 67,563.36

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Solution

The fourth proportional to 121,278.21, 167,364.03 and 67,563.36 is: 93,237.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,278.21 : 167,364.03 = 67,563.36 : x
  2. Step 2: Convert to fraction form
    121,278.21/167,364.03 = 67,563.36/x
  3. Step 3: Cross multiply
    121,278.21x = 167,364.03 × 67,563.36
  4. Step 4: Simplify right side
    121,278.21x = 11,307,676,209.94
  5. Step 5: Solve for x
    x = 11,307,676,209.94/121,278.21
  6. Step 6: Final answer
    x = 93,237.49

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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.