Home / 121,451.10-167,602.80-67,739.59

Finding the Fourth Proportional to 121,451.10, 167,602.80 and 67,739.59

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Solution

The fourth proportional to 121,451.10, 167,602.80 and 67,739.59 is: 93,480.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,451.10 : 167,602.80 = 67,739.59 : x
  2. Step 2: Convert to fraction form
    121,451.10/167,602.80 = 67,739.59/x
  3. Step 3: Cross multiply
    121,451.10x = 167,602.80 × 67,739.59
  4. Step 4: Simplify right side
    121,451.10x = 11,353,345,418.38
  5. Step 5: Solve for x
    x = 11,353,345,418.38/121,451.10
  6. Step 6: Final answer
    x = 93,480.80

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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.