Home / 102,939.43-154,302.06-39,802.90

Finding the Fourth Proportional to 102,939.43, 154,302.06 and 39,802.90

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Solution

The fourth proportional to 102,939.43, 154,302.06 and 39,802.90 is: 59,662.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,939.43 : 154,302.06 = 39,802.90 : x
  2. Step 2: Convert to fraction form
    102,939.43/154,302.06 = 39,802.90/x
  3. Step 3: Cross multiply
    102,939.43x = 154,302.06 × 39,802.90
  4. Step 4: Simplify right side
    102,939.43x = 6,141,669,463.97
  5. Step 5: Solve for x
    x = 6,141,669,463.97/102,939.43
  6. Step 6: Final answer
    x = 59,662.94

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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.