Home / 159,033.14-219,377.65-100,783.20

Finding the Fourth Proportional to 159,033.14, 219,377.65 and 100,783.20

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Solution

The fourth proportional to 159,033.14, 219,377.65 and 100,783.20 is: 139,025.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,033.14 : 219,377.65 = 100,783.20 : x
  2. Step 2: Convert to fraction form
    159,033.14/219,377.65 = 100,783.20/x
  3. Step 3: Cross multiply
    159,033.14x = 219,377.65 × 100,783.20
  4. Step 4: Simplify right side
    159,033.14x = 22,109,581,575.48
  5. Step 5: Solve for x
    x = 22,109,581,575.48/159,033.14
  6. Step 6: Final answer
    x = 139,025.00

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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.