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Finding the Fourth Proportional to 161,986.60, 242,591.10 and 130,882.60

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Solution

The fourth proportional to 161,986.60, 242,591.10 and 130,882.60 is: 196,009.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,986.60 : 242,591.10 = 130,882.60 : x
  2. Step 2: Convert to fraction form
    161,986.60/242,591.10 = 130,882.60/x
  3. Step 3: Cross multiply
    161,986.60x = 242,591.10 × 130,882.60
  4. Step 4: Simplify right side
    161,986.60x = 31,750,953,904.86
  5. Step 5: Solve for x
    x = 31,750,953,904.86/161,986.60
  6. Step 6: Final answer
    x = 196,009.76

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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.