Home / 121,519.90-167,693.52-66,327.10

Finding the Fourth Proportional to 121,519.90, 167,693.52 and 66,327.10

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Solution

The fourth proportional to 121,519.90, 167,693.52 and 66,327.10 is: 91,529.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,519.90 : 167,693.52 = 66,327.10 : x
  2. Step 2: Convert to fraction form
    121,519.90/167,693.52 = 66,327.10/x
  3. Step 3: Cross multiply
    121,519.90x = 167,693.52 × 66,327.10
  4. Step 4: Simplify right side
    121,519.90x = 11,122,624,870.39
  5. Step 5: Solve for x
    x = 11,122,624,870.39/121,519.90
  6. Step 6: Final answer
    x = 91,529.25

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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.