Home / 121,098.09-167,121.93-67,384.28

Finding the Fourth Proportional to 121,098.09, 167,121.93 and 67,384.28

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Solution

The fourth proportional to 121,098.09, 167,121.93 and 67,384.28 is: 92,993.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,098.09 : 167,121.93 = 67,384.28 : x
  2. Step 2: Convert to fraction form
    121,098.09/167,121.93 = 67,384.28/x
  3. Step 3: Cross multiply
    121,098.09x = 167,121.93 × 67,384.28
  4. Step 4: Simplify right side
    121,098.09x = 11,261,390,925.26
  5. Step 5: Solve for x
    x = 11,261,390,925.26/121,098.09
  6. Step 6: Final answer
    x = 92,993.96

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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.