Home / 161,731.20-242,596.80-102,390.60

Finding the Fourth Proportional to 161,731.20, 242,596.80 and 102,390.60

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Solution

The fourth proportional to 161,731.20, 242,596.80 and 102,390.60 is: 153,585.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,731.20 : 242,596.80 = 102,390.60 : x
  2. Step 2: Convert to fraction form
    161,731.20/242,596.80 = 102,390.60/x
  3. Step 3: Cross multiply
    161,731.20x = 242,596.80 × 102,390.60
  4. Step 4: Simplify right side
    161,731.20x = 24,839,631,910.08
  5. Step 5: Solve for x
    x = 24,839,631,910.08/161,731.20
  6. Step 6: Final answer
    x = 153,585.90

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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.