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Finding the Fourth Proportional to 121,048.12, 167,050.56 and 66,602.62

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Solution

The fourth proportional to 121,048.12, 167,050.56 and 66,602.62 is: 91,913.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,048.12 : 167,050.56 = 66,602.62 : x
  2. Step 2: Convert to fraction form
    121,048.12/167,050.56 = 66,602.62/x
  3. Step 3: Cross multiply
    121,048.12x = 167,050.56 × 66,602.62
  4. Step 4: Simplify right side
    121,048.12x = 11,126,004,968.47
  5. Step 5: Solve for x
    x = 11,126,004,968.47/121,048.12
  6. Step 6: Final answer
    x = 91,913.90

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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.