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Finding the Fourth Proportional to 121,374.17, 167,497.09 and 67,662.59

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Solution

The fourth proportional to 121,374.17, 167,497.09 and 67,662.59 is: 93,374.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,374.17 : 167,497.09 = 67,662.59 : x
  2. Step 2: Convert to fraction form
    121,374.17/167,497.09 = 67,662.59/x
  3. Step 3: Cross multiply
    121,374.17x = 167,497.09 × 67,662.59
  4. Step 4: Simplify right side
    121,374.17x = 11,333,287,052.69
  5. Step 5: Solve for x
    x = 11,333,287,052.69/121,374.17
  6. Step 6: Final answer
    x = 93,374.78

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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.