Home / 219,122.28-302,382.62-123,637.86

Finding the Fourth Proportional to 219,122.28, 302,382.62 and 123,637.86

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Solution

The fourth proportional to 219,122.28, 302,382.62 and 123,637.86 is: 170,616.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,122.28 : 302,382.62 = 123,637.86 : x
  2. Step 2: Convert to fraction form
    219,122.28/302,382.62 = 123,637.86/x
  3. Step 3: Cross multiply
    219,122.28x = 302,382.62 × 123,637.86
  4. Step 4: Simplify right side
    219,122.28x = 37,385,940,175.76
  5. Step 5: Solve for x
    x = 37,385,940,175.76/219,122.28
  6. Step 6: Final answer
    x = 170,616.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.