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Finding the Fourth Proportional to 113,796.28, 157,092 and 66,040.40

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Solution

The fourth proportional to 113,796.28, 157,092 and 66,040.40 is: 91,166.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,796.28 : 157,092 = 66,040.40 : x
  2. Step 2: Convert to fraction form
    113,796.28/157,092 = 66,040.40/x
  3. Step 3: Cross multiply
    113,796.28x = 157,092 × 66,040.40
  4. Step 4: Simplify right side
    113,796.28x = 10,374,417,731.34
  5. Step 5: Solve for x
    x = 10,374,417,731.34/113,796.28
  6. Step 6: Final answer
    x = 91,166.58

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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.