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Finding the Fourth Proportional to 121,347.87, 167,420.48 and 67,622.73

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Solution

The fourth proportional to 121,347.87, 167,420.48 and 67,622.73 is: 93,297.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,347.87 : 167,420.48 = 67,622.73 : x
  2. Step 2: Convert to fraction form
    121,347.87/167,420.48 = 67,622.73/x
  3. Step 3: Cross multiply
    121,347.87x = 167,420.48 × 67,622.73
  4. Step 4: Simplify right side
    121,347.87x = 11,321,429,577.40
  5. Step 5: Solve for x
    x = 11,321,429,577.40/121,347.87
  6. Step 6: Final answer
    x = 93,297.31

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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.