Home / 187,981.47-281,916.68-54,819.81

Finding the Fourth Proportional to 187,981.47, 281,916.68 and 54,819.81

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Solution

The fourth proportional to 187,981.47, 281,916.68 and 54,819.81 is: 82,213.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,981.47 : 281,916.68 = 54,819.81 : x
  2. Step 2: Convert to fraction form
    187,981.47/281,916.68 = 54,819.81/x
  3. Step 3: Cross multiply
    187,981.47x = 281,916.68 × 54,819.81
  4. Step 4: Simplify right side
    187,981.47x = 15,454,618,559.33
  5. Step 5: Solve for x
    x = 15,454,618,559.33/187,981.47
  6. Step 6: Final answer
    x = 82,213.52

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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.