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Finding the Fourth Proportional to 114,149.03, 157,489.95 and 68,840.87

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Solution

The fourth proportional to 114,149.03, 157,489.95 and 68,840.87 is: 94,978.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,149.03 : 157,489.95 = 68,840.87 : x
  2. Step 2: Convert to fraction form
    114,149.03/157,489.95 = 68,840.87/x
  3. Step 3: Cross multiply
    114,149.03x = 157,489.95 × 68,840.87
  4. Step 4: Simplify right side
    114,149.03x = 10,841,745,174.26
  5. Step 5: Solve for x
    x = 10,841,745,174.26/114,149.03
  6. Step 6: Final answer
    x = 94,978.86

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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.