Home / 148,977.90-205,593.45-80,999.46

Finding the Fourth Proportional to 148,977.90, 205,593.45 and 80,999.46

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Solution

The fourth proportional to 148,977.90, 205,593.45 and 80,999.46 is: 111,781.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,977.90 : 205,593.45 = 80,999.46 : x
  2. Step 2: Convert to fraction form
    148,977.90/205,593.45 = 80,999.46/x
  3. Step 3: Cross multiply
    148,977.90x = 205,593.45 × 80,999.46
  4. Step 4: Simplify right side
    148,977.90x = 16,652,958,429.54
  5. Step 5: Solve for x
    x = 16,652,958,429.54/148,977.90
  6. Step 6: Final answer
    x = 111,781.40

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1.5x scale

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.