Home / 181,391.86-272,166.17-69,105.81

Finding the Fourth Proportional to 181,391.86, 272,166.17 and 69,105.81

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Solution

The fourth proportional to 181,391.86, 272,166.17 and 69,105.81 is: 103,688.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,391.86 : 272,166.17 = 69,105.81 : x
  2. Step 2: Convert to fraction form
    181,391.86/272,166.17 = 69,105.81/x
  3. Step 3: Cross multiply
    181,391.86x = 272,166.17 × 69,105.81
  4. Step 4: Simplify right side
    181,391.86x = 18,808,263,632.45
  5. Step 5: Solve for x
    x = 18,808,263,632.45/181,391.86
  6. Step 6: Final answer
    x = 103,688.58

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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.