Home / 102,790.92-154,244.70-40,505.16

Finding the Fourth Proportional to 102,790.92, 154,244.70 and 40,505.16

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Solution

The fourth proportional to 102,790.92, 154,244.70 and 40,505.16 is: 60,780.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,790.92 : 154,244.70 = 40,505.16 : x
  2. Step 2: Convert to fraction form
    102,790.92/154,244.70 = 40,505.16/x
  3. Step 3: Cross multiply
    102,790.92x = 154,244.70 × 40,505.16
  4. Step 4: Simplify right side
    102,790.92x = 6,247,706,252.65
  5. Step 5: Solve for x
    x = 6,247,706,252.65/102,790.92
  6. Step 6: Final answer
    x = 60,780.72

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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.