Home / 155,620.90-233,103.30-138,999.70

Finding the Fourth Proportional to 155,620.90, 233,103.30 and 138,999.70

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Solution

The fourth proportional to 155,620.90, 233,103.30 and 138,999.70 is: 208,206.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,620.90 : 233,103.30 = 138,999.70 : x
  2. Step 2: Convert to fraction form
    155,620.90/233,103.30 = 138,999.70/x
  3. Step 3: Cross multiply
    155,620.90x = 233,103.30 × 138,999.70
  4. Step 4: Simplify right side
    155,620.90x = 32,401,288,769.01
  5. Step 5: Solve for x
    x = 32,401,288,769.01/155,620.90
  6. Step 6: Final answer
    x = 208,206.54

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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.