Home / 147,865.80-221,409.90-108,208.20

Finding the Fourth Proportional to 147,865.80, 221,409.90 and 108,208.20

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Solution

The fourth proportional to 147,865.80, 221,409.90 and 108,208.20 is: 162,027.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,865.80 : 221,409.90 = 108,208.20 : x
  2. Step 2: Convert to fraction form
    147,865.80/221,409.90 = 108,208.20/x
  3. Step 3: Cross multiply
    147,865.80x = 221,409.90 × 108,208.20
  4. Step 4: Simplify right side
    147,865.80x = 23,958,366,741.18
  5. Step 5: Solve for x
    x = 23,958,366,741.18/147,865.80
  6. Step 6: Final answer
    x = 162,027.78

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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.