Home / 161,723.76-242,632.56-66,936.48

Finding the Fourth Proportional to 161,723.76, 242,632.56 and 66,936.48

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Solution

The fourth proportional to 161,723.76, 242,632.56 and 66,936.48 is: 100,424.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,723.76 : 242,632.56 = 66,936.48 : x
  2. Step 2: Convert to fraction form
    161,723.76/242,632.56 = 66,936.48/x
  3. Step 3: Cross multiply
    161,723.76x = 242,632.56 × 66,936.48
  4. Step 4: Simplify right side
    161,723.76x = 16,240,969,499.79
  5. Step 5: Solve for x
    x = 16,240,969,499.79/161,723.76
  6. Step 6: Final answer
    x = 100,424.14

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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.