Home / 159,033.89-219,378.69-100,783.95

Finding the Fourth Proportional to 159,033.89, 219,378.69 and 100,783.95

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Solution

The fourth proportional to 159,033.89, 219,378.69 and 100,783.95 is: 139,026.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,033.89 : 219,378.69 = 100,783.95 : x
  2. Step 2: Convert to fraction form
    159,033.89/219,378.69 = 100,783.95/x
  3. Step 3: Cross multiply
    159,033.89x = 219,378.69 × 100,783.95
  4. Step 4: Simplify right side
    159,033.89x = 22,109,850,924.03
  5. Step 5: Solve for x
    x = 22,109,850,924.03/159,033.89
  6. Step 6: Final answer
    x = 139,026.04

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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.