Home / 121,618.63-167,832.12-67,904.56

Finding the Fourth Proportional to 121,618.63, 167,832.12 and 67,904.56

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Solution

The fourth proportional to 121,618.63, 167,832.12 and 67,904.56 is: 93,707.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,618.63 : 167,832.12 = 67,904.56 : x
  2. Step 2: Convert to fraction form
    121,618.63/167,832.12 = 67,904.56/x
  3. Step 3: Cross multiply
    121,618.63x = 167,832.12 × 67,904.56
  4. Step 4: Simplify right side
    121,618.63x = 11,396,566,262.47
  5. Step 5: Solve for x
    x = 11,396,566,262.47/121,618.63
  6. Step 6: Final answer
    x = 93,707.41

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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.