Home / 190,306.32-285,265.08-123,879.84

Finding the Fourth Proportional to 190,306.32, 285,265.08 and 123,879.84

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Solution

The fourth proportional to 190,306.32, 285,265.08 and 123,879.84 is: 185,693.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,306.32 : 285,265.08 = 123,879.84 : x
  2. Step 2: Convert to fraction form
    190,306.32/285,265.08 = 123,879.84/x
  3. Step 3: Cross multiply
    190,306.32x = 285,265.08 × 123,879.84
  4. Step 4: Simplify right side
    190,306.32x = 35,338,592,467.99
  5. Step 5: Solve for x
    x = 35,338,592,467.99/190,306.32
  6. Step 6: Final answer
    x = 185,693.22

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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.