Home / 121,433.02-167,578.26-67,720.30

Finding the Fourth Proportional to 121,433.02, 167,578.26 and 67,720.30

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Solution

The fourth proportional to 121,433.02, 167,578.26 and 67,720.30 is: 93,454.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,433.02 : 167,578.26 = 67,720.30 : x
  2. Step 2: Convert to fraction form
    121,433.02/167,578.26 = 67,720.30/x
  3. Step 3: Cross multiply
    121,433.02x = 167,578.26 × 67,720.30
  4. Step 4: Simplify right side
    121,433.02x = 11,348,450,040.68
  5. Step 5: Solve for x
    x = 11,348,450,040.68/121,433.02
  6. Step 6: Final answer
    x = 93,454.40

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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.