Home / 121,228.42-167,283.23-67,518.43

Finding the Fourth Proportional to 121,228.42, 167,283.23 and 67,518.43

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Solution

The fourth proportional to 121,228.42, 167,283.23 and 67,518.43 is: 93,168.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,228.42 : 167,283.23 = 67,518.43 : x
  2. Step 2: Convert to fraction form
    121,228.42/167,283.23 = 67,518.43/x
  3. Step 3: Cross multiply
    121,228.42x = 167,283.23 × 67,518.43
  4. Step 4: Simplify right side
    121,228.42x = 11,294,701,054.93
  5. Step 5: Solve for x
    x = 11,294,701,054.93/121,228.42
  6. Step 6: Final answer
    x = 93,168.76

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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.