Home / 119,648.32-164,979.84-76,571.44

Finding the Fourth Proportional to 119,648.32, 164,979.84 and 76,571.44

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Solution

The fourth proportional to 119,648.32, 164,979.84 and 76,571.44 is: 105,582.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,648.32 : 164,979.84 = 76,571.44 : x
  2. Step 2: Convert to fraction form
    119,648.32/164,979.84 = 76,571.44/x
  3. Step 3: Cross multiply
    119,648.32x = 164,979.84 × 76,571.44
  4. Step 4: Simplify right side
    119,648.32x = 12,632,743,919.77
  5. Step 5: Solve for x
    x = 12,632,743,919.77/119,648.32
  6. Step 6: Final answer
    x = 105,582.29

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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.