Home / 121,491.33-182,238.62-42,607.86

Finding the Fourth Proportional to 121,491.33, 182,238.62 and 42,607.86

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Solution

The fourth proportional to 121,491.33, 182,238.62 and 42,607.86 is: 63,912.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,491.33 : 182,238.62 = 42,607.86 : x
  2. Step 2: Convert to fraction form
    121,491.33/182,238.62 = 42,607.86/x
  3. Step 3: Cross multiply
    121,491.33x = 182,238.62 × 42,607.86
  4. Step 4: Simplify right side
    121,491.33x = 7,764,797,394.51
  5. Step 5: Solve for x
    x = 7,764,797,394.51/121,491.33
  6. Step 6: Final answer
    x = 63,912.36

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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.