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Finding the Fourth Proportional to 114,500.88, 157,981.32 and 66,090.96

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Solution

The fourth proportional to 114,500.88, 157,981.32 and 66,090.96 is: 91,188.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,500.88 : 157,981.32 = 66,090.96 : x
  2. Step 2: Convert to fraction form
    114,500.88/157,981.32 = 66,090.96/x
  3. Step 3: Cross multiply
    114,500.88x = 157,981.32 × 66,090.96
  4. Step 4: Simplify right side
    114,500.88x = 10,441,137,100.87
  5. Step 5: Solve for x
    x = 10,441,137,100.87/114,500.88
  6. Step 6: Final answer
    x = 91,188.27

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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.