Home / 121,330.69-167,448.89-72,948.44

Finding the Fourth Proportional to 121,330.69, 167,448.89 and 72,948.44

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Solution

The fourth proportional to 121,330.69, 167,448.89 and 72,948.44 is: 100,676.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,330.69 : 167,448.89 = 72,948.44 : x
  2. Step 2: Convert to fraction form
    121,330.69/167,448.89 = 72,948.44/x
  3. Step 3: Cross multiply
    121,330.69x = 167,448.89 × 72,948.44
  4. Step 4: Simplify right side
    121,330.69x = 12,215,135,305.23
  5. Step 5: Solve for x
    x = 12,215,135,305.23/121,330.69
  6. Step 6: Final answer
    x = 100,676.39

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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.