Home / 102,902.49-154,353.60-67,586.76

Finding the Fourth Proportional to 102,902.49, 154,353.60 and 67,586.76

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Solution

The fourth proportional to 102,902.49, 154,353.60 and 67,586.76 is: 101,380.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,902.49 : 154,353.60 = 67,586.76 : x
  2. Step 2: Convert to fraction form
    102,902.49/154,353.60 = 67,586.76/x
  3. Step 3: Cross multiply
    102,902.49x = 154,353.60 × 67,586.76
  4. Step 4: Simplify right side
    102,902.49x = 10,432,259,718.34
  5. Step 5: Solve for x
    x = 10,432,259,718.34/102,902.49
  6. Step 6: Final answer
    x = 101,380.05

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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.