Home / 102,011.40-152,861.18-68,607.81

Finding the Fourth Proportional to 102,011.40, 152,861.18 and 68,607.81

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Solution

The fourth proportional to 102,011.40, 152,861.18 and 68,607.81 is: 102,806.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,011.40 : 152,861.18 = 68,607.81 : x
  2. Step 2: Convert to fraction form
    102,011.40/152,861.18 = 68,607.81/x
  3. Step 3: Cross multiply
    102,011.40x = 152,861.18 × 68,607.81
  4. Step 4: Simplify right side
    102,011.40x = 10,487,470,450.78
  5. Step 5: Solve for x
    x = 10,487,470,450.78/102,011.40
  6. Step 6: Final answer
    x = 102,806.85

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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.