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Finding the Fourth Proportional to 138,003.41, 207,005.13 and 44,509.16

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Solution

The fourth proportional to 138,003.41, 207,005.13 and 44,509.16 is: 66,763.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,003.41 : 207,005.13 = 44,509.16 : x
  2. Step 2: Convert to fraction form
    138,003.41/207,005.13 = 44,509.16/x
  3. Step 3: Cross multiply
    138,003.41x = 207,005.13 × 44,509.16
  4. Step 4: Simplify right side
    138,003.41x = 9,213,623,416.97
  5. Step 5: Solve for x
    x = 9,213,623,416.97/138,003.41
  6. Step 6: Final answer
    x = 66,763.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.