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Finding the Fourth Proportional to 150,406.94, 207,541.82 and 89,955.53

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Solution

The fourth proportional to 150,406.94, 207,541.82 and 89,955.53 is: 124,126.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,406.94 : 207,541.82 = 89,955.53 : x
  2. Step 2: Convert to fraction form
    150,406.94/207,541.82 = 89,955.53/x
  3. Step 3: Cross multiply
    150,406.94x = 207,541.82 × 89,955.53
  4. Step 4: Simplify right side
    150,406.94x = 18,669,534,380.73
  5. Step 5: Solve for x
    x = 18,669,534,380.73/150,406.94
  6. Step 6: Final answer
    x = 124,126.81

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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.