Home / 215,508.75-323,261.31-80,606.85

Finding the Fourth Proportional to 215,508.75, 323,261.31 and 80,606.85

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Solution

The fourth proportional to 215,508.75, 323,261.31 and 80,606.85 is: 120,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,508.75 : 323,261.31 = 80,606.85 : x
  2. Step 2: Convert to fraction form
    215,508.75/323,261.31 = 80,606.85/x
  3. Step 3: Cross multiply
    215,508.75x = 323,261.31 × 80,606.85
  4. Step 4: Simplify right side
    215,508.75x = 26,057,075,925.97
  5. Step 5: Solve for x
    x = 26,057,075,925.97/215,508.75
  6. Step 6: Final answer
    x = 120,909.60

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1.5x scale

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.