Home / 102,786.30-154,179.45-98,849.70

Finding the Fourth Proportional to 102,786.30, 154,179.45 and 98,849.70

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Solution

The fourth proportional to 102,786.30, 154,179.45 and 98,849.70 is: 148,274.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,786.30 : 154,179.45 = 98,849.70 : x
  2. Step 2: Convert to fraction form
    102,786.30/154,179.45 = 98,849.70/x
  3. Step 3: Cross multiply
    102,786.30x = 154,179.45 × 98,849.70
  4. Step 4: Simplify right side
    102,786.30x = 15,240,592,378.67
  5. Step 5: Solve for x
    x = 15,240,592,378.67/102,786.30
  6. Step 6: Final answer
    x = 148,274.55

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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.