Home / 161,763.20-242,644.80-102,665.60

Finding the Fourth Proportional to 161,763.20, 242,644.80 and 102,665.60

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Solution

The fourth proportional to 161,763.20, 242,644.80 and 102,665.60 is: 153,998.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,763.20 : 242,644.80 = 102,665.60 : x
  2. Step 2: Convert to fraction form
    161,763.20/242,644.80 = 102,665.60/x
  3. Step 3: Cross multiply
    161,763.20x = 242,644.80 × 102,665.60
  4. Step 4: Simplify right side
    161,763.20x = 24,911,273,978.88
  5. Step 5: Solve for x
    x = 24,911,273,978.88/161,763.20
  6. Step 6: Final answer
    x = 153,998.40

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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.