Home / 121,384.31-167,511.07-67,672.73

Finding the Fourth Proportional to 121,384.31, 167,511.07 and 67,672.73

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Solution

The fourth proportional to 121,384.31, 167,511.07 and 67,672.73 is: 93,388.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,384.31 : 167,511.07 = 67,672.73 : x
  2. Step 2: Convert to fraction form
    121,384.31/167,511.07 = 67,672.73/x
  3. Step 3: Cross multiply
    121,384.31x = 167,511.07 × 67,672.73
  4. Step 4: Simplify right side
    121,384.31x = 11,335,931,915.49
  5. Step 5: Solve for x
    x = 11,335,931,915.49/121,384.31
  6. Step 6: Final answer
    x = 93,388.78

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1.5x scale

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.