Home / 121,407.02-167,542.32-67,694.30

Finding the Fourth Proportional to 121,407.02, 167,542.32 and 67,694.30

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Solution

The fourth proportional to 121,407.02, 167,542.32 and 67,694.30 is: 93,418.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,407.02 : 167,542.32 = 67,694.30 : x
  2. Step 2: Convert to fraction form
    121,407.02/167,542.32 = 67,694.30/x
  3. Step 3: Cross multiply
    121,407.02x = 167,542.32 × 67,694.30
  4. Step 4: Simplify right side
    121,407.02x = 11,341,660,072.78
  5. Step 5: Solve for x
    x = 11,341,660,072.78/121,407.02
  6. Step 6: Final answer
    x = 93,418.49

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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.