Home / 129,839.74-194,247.16-98,340.56

Finding the Fourth Proportional to 129,839.74, 194,247.16 and 98,340.56

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Solution

The fourth proportional to 129,839.74, 194,247.16 and 98,340.56 is: 147,122.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,839.74 : 194,247.16 = 98,340.56 : x
  2. Step 2: Convert to fraction form
    129,839.74/194,247.16 = 98,340.56/x
  3. Step 3: Cross multiply
    129,839.74x = 194,247.16 × 98,340.56
  4. Step 4: Simplify right side
    129,839.74x = 19,102,374,492.81
  5. Step 5: Solve for x
    x = 19,102,374,492.81/129,839.74
  6. Step 6: Final answer
    x = 147,122.71

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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.