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Finding the Fourth Proportional to 121,131.60, 167,159.95 and 67,416.63

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Solution

The fourth proportional to 121,131.60, 167,159.95 and 67,416.63 is: 93,034.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,131.60 : 167,159.95 = 67,416.63 : x
  2. Step 2: Convert to fraction form
    121,131.60/167,159.95 = 67,416.63/x
  3. Step 3: Cross multiply
    121,131.60x = 167,159.95 × 67,416.63
  4. Step 4: Simplify right side
    121,131.60x = 11,269,360,331.43
  5. Step 5: Solve for x
    x = 11,269,360,331.43/121,131.60
  6. Step 6: Final answer
    x = 93,034.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.