Home / 121,484.26-167,642.94-89,641.54

Finding the Fourth Proportional to 121,484.26, 167,642.94 and 89,641.54

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Solution

The fourth proportional to 121,484.26, 167,642.94 and 89,641.54 is: 123,701.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,484.26 : 167,642.94 = 89,641.54 : x
  2. Step 2: Convert to fraction form
    121,484.26/167,642.94 = 89,641.54/x
  3. Step 3: Cross multiply
    121,484.26x = 167,642.94 × 89,641.54
  4. Step 4: Simplify right side
    121,484.26x = 15,027,771,311.73
  5. Step 5: Solve for x
    x = 15,027,771,311.73/121,484.26
  6. Step 6: Final answer
    x = 123,701.39

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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.