Home / 161,539.86-242,359.38-82,709.43

Finding the Fourth Proportional to 161,539.86, 242,359.38 and 82,709.43

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Solution

The fourth proportional to 161,539.86, 242,359.38 and 82,709.43 is: 124,089.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,539.86 : 242,359.38 = 82,709.43 : x
  2. Step 2: Convert to fraction form
    161,539.86/242,359.38 = 82,709.43/x
  3. Step 3: Cross multiply
    161,539.86x = 242,359.38 × 82,709.43
  4. Step 4: Simplify right side
    161,539.86x = 20,045,406,174.95
  5. Step 5: Solve for x
    x = 20,045,406,174.95/161,539.86
  6. Step 6: Final answer
    x = 124,089.54

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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.