Home / 121,119.10-167,152.21-67,403.95

Finding the Fourth Proportional to 121,119.10, 167,152.21 and 67,403.95

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Solution

The fourth proportional to 121,119.10, 167,152.21 and 67,403.95 is: 93,021.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,119.10 : 167,152.21 = 67,403.95 : x
  2. Step 2: Convert to fraction form
    121,119.10/167,152.21 = 67,403.95/x
  3. Step 3: Cross multiply
    121,119.10x = 167,152.21 × 67,403.95
  4. Step 4: Simplify right side
    121,119.10x = 11,266,718,618.84
  5. Step 5: Solve for x
    x = 11,266,718,618.84/121,119.10
  6. Step 6: Final answer
    x = 93,021.82

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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.