Home / 137,583.71-189,608.43-107,321.10

Finding the Fourth Proportional to 137,583.71, 189,608.43 and 107,321.10

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Solution

The fourth proportional to 137,583.71, 189,608.43 and 107,321.10 is: 147,902.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,583.71 : 189,608.43 = 107,321.10 : x
  2. Step 2: Convert to fraction form
    137,583.71/189,608.43 = 107,321.10/x
  3. Step 3: Cross multiply
    137,583.71x = 189,608.43 × 107,321.10
  4. Step 4: Simplify right side
    137,583.71x = 20,348,983,792.23
  5. Step 5: Solve for x
    x = 20,348,983,792.23/137,583.71
  6. Step 6: Final answer
    x = 147,902.57

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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.