Home / 121,169.12-167,218.90-67,457.54

Finding the Fourth Proportional to 121,169.12, 167,218.90 and 67,457.54

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Solution

The fourth proportional to 121,169.12, 167,218.90 and 67,457.54 is: 93,094.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,169.12 : 167,218.90 = 67,457.54 : x
  2. Step 2: Convert to fraction form
    121,169.12/167,218.90 = 67,457.54/x
  3. Step 3: Cross multiply
    121,169.12x = 167,218.90 × 67,457.54
  4. Step 4: Simplify right side
    121,169.12x = 11,280,175,884.91
  5. Step 5: Solve for x
    x = 11,280,175,884.91/121,169.12
  6. Step 6: Final answer
    x = 93,094.48

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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.