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Finding the Fourth Proportional to 98,147.86, 135,448.20 and 55,710.34

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Solution

The fourth proportional to 98,147.86, 135,448.20 and 55,710.34 is: 76,882.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,147.86 : 135,448.20 = 55,710.34 : x
  2. Step 2: Convert to fraction form
    98,147.86/135,448.20 = 55,710.34/x
  3. Step 3: Cross multiply
    98,147.86x = 135,448.20 × 55,710.34
  4. Step 4: Simplify right side
    98,147.86x = 7,545,865,274.39
  5. Step 5: Solve for x
    x = 7,545,865,274.39/98,147.86
  6. Step 6: Final answer
    x = 76,882.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.