Home / 120,919.64-166,867.89-67,203.50

Finding the Fourth Proportional to 120,919.64, 166,867.89 and 67,203.50

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Solution

The fourth proportional to 120,919.64, 166,867.89 and 67,203.50 is: 92,740.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,919.64 : 166,867.89 = 67,203.50 : x
  2. Step 2: Convert to fraction form
    120,919.64/166,867.89 = 67,203.50/x
  3. Step 3: Cross multiply
    120,919.64x = 166,867.89 × 67,203.50
  4. Step 4: Simplify right side
    120,919.64x = 11,214,106,430.27
  5. Step 5: Solve for x
    x = 11,214,106,430.27/120,919.64
  6. Step 6: Final answer
    x = 92,740.16

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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.