Home / 121,448.25-167,613.21-71,147.25

Finding the Fourth Proportional to 121,448.25, 167,613.21 and 71,147.25

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Solution

The fourth proportional to 121,448.25, 167,613.21 and 71,147.25 is: 98,191.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,448.25 : 167,613.21 = 71,147.25 : x
  2. Step 2: Convert to fraction form
    121,448.25/167,613.21 = 71,147.25/x
  3. Step 3: Cross multiply
    121,448.25x = 167,613.21 × 71,147.25
  4. Step 4: Simplify right side
    121,448.25x = 11,925,218,955.17
  5. Step 5: Solve for x
    x = 11,925,218,955.17/121,448.25
  6. Step 6: Final answer
    x = 98,191.77

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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.