Home / 187,401.70-281,102.55-108,718.30

Finding the Fourth Proportional to 187,401.70, 281,102.55 and 108,718.30

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Solution

The fourth proportional to 187,401.70, 281,102.55 and 108,718.30 is: 163,077.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,401.70 : 281,102.55 = 108,718.30 : x
  2. Step 2: Convert to fraction form
    187,401.70/281,102.55 = 108,718.30/x
  3. Step 3: Cross multiply
    187,401.70x = 281,102.55 × 108,718.30
  4. Step 4: Simplify right side
    187,401.70x = 30,560,991,361.67
  5. Step 5: Solve for x
    x = 30,560,991,361.67/187,401.70
  6. Step 6: Final answer
    x = 163,077.45

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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.