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Finding the Fourth Proportional to 161,504.89, 242,078.93 and 66,682.79

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Solution

The fourth proportional to 161,504.89, 242,078.93 and 66,682.79 is: 99,950.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,504.89 : 242,078.93 = 66,682.79 : x
  2. Step 2: Convert to fraction form
    161,504.89/242,078.93 = 66,682.79/x
  3. Step 3: Cross multiply
    161,504.89x = 242,078.93 × 66,682.79
  4. Step 4: Simplify right side
    161,504.89x = 16,142,498,724.40
  5. Step 5: Solve for x
    x = 16,142,498,724.40/161,504.89
  6. Step 6: Final answer
    x = 99,950.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.