Home / 121,396.69-167,527.76-66,947.51

Finding the Fourth Proportional to 121,396.69, 167,527.76 and 66,947.51

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Solution

The fourth proportional to 121,396.69, 167,527.76 and 66,947.51 is: 92,387.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,396.69 : 167,527.76 = 66,947.51 : x
  2. Step 2: Convert to fraction form
    121,396.69/167,527.76 = 66,947.51/x
  3. Step 3: Cross multiply
    121,396.69x = 167,527.76 × 66,947.51
  4. Step 4: Simplify right side
    121,396.69x = 11,215,566,848.54
  5. Step 5: Solve for x
    x = 11,215,566,848.54/121,396.69
  6. Step 6: Final answer
    x = 92,387.75

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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.