Home / 135,330.98-186,744.10-80,872.34

Finding the Fourth Proportional to 135,330.98, 186,744.10 and 80,872.34

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Solution

The fourth proportional to 135,330.98, 186,744.10 and 80,872.34 is: 111,596.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,330.98 : 186,744.10 = 80,872.34 : x
  2. Step 2: Convert to fraction form
    135,330.98/186,744.10 = 80,872.34/x
  3. Step 3: Cross multiply
    135,330.98x = 186,744.10 × 80,872.34
  4. Step 4: Simplify right side
    135,330.98x = 15,102,432,348.19
  5. Step 5: Solve for x
    x = 15,102,432,348.19/135,330.98
  6. Step 6: Final answer
    x = 111,596.27

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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.