Home / 121,437.41-167,583.30-67,722.49

Finding the Fourth Proportional to 121,437.41, 167,583.30 and 67,722.49

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Solution

The fourth proportional to 121,437.41, 167,583.30 and 67,722.49 is: 93,456.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,437.41 : 167,583.30 = 67,722.49 : x
  2. Step 2: Convert to fraction form
    121,437.41/167,583.30 = 67,722.49/x
  3. Step 3: Cross multiply
    121,437.41x = 167,583.30 × 67,722.49
  4. Step 4: Simplify right side
    121,437.41x = 11,349,157,520.50
  5. Step 5: Solve for x
    x = 11,349,157,520.50/121,437.41
  6. Step 6: Final answer
    x = 93,456.85

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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.