Home / 181,639.72-272,065.74-87,949

Finding the Fourth Proportional to 181,639.72, 272,065.74 and 87,949

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Solution

The fourth proportional to 181,639.72, 272,065.74 and 87,949 is: 131,732.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,639.72 : 272,065.74 = 87,949 : x
  2. Step 2: Convert to fraction form
    181,639.72/272,065.74 = 87,949/x
  3. Step 3: Cross multiply
    181,639.72x = 272,065.74 × 87,949
  4. Step 4: Simplify right side
    181,639.72x = 23,927,909,767.26
  5. Step 5: Solve for x
    x = 23,927,909,767.26/181,639.72
  6. Step 6: Final answer
    x = 131,732.80

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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.