Home / 181,390.86-272,164.67-69,104.81

Finding the Fourth Proportional to 181,390.86, 272,164.67 and 69,104.81

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Solution

The fourth proportional to 181,390.86, 272,164.67 and 69,104.81 is: 103,687.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,390.86 : 272,164.67 = 69,104.81 : x
  2. Step 2: Convert to fraction form
    181,390.86/272,164.67 = 69,104.81/x
  3. Step 3: Cross multiply
    181,390.86x = 272,164.67 × 69,104.81
  4. Step 4: Simplify right side
    181,390.86x = 18,807,887,809.06
  5. Step 5: Solve for x
    x = 18,807,887,809.06/181,390.86
  6. Step 6: Final answer
    x = 103,687.08

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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.