Home / 180,396.91-248,916.81-115,880.41

Finding the Fourth Proportional to 180,396.91, 248,916.81 and 115,880.41

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Solution

The fourth proportional to 180,396.91, 248,916.81 and 115,880.41 is: 159,895.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,396.91 : 248,916.81 = 115,880.41 : x
  2. Step 2: Convert to fraction form
    180,396.91/248,916.81 = 115,880.41/x
  3. Step 3: Cross multiply
    180,396.91x = 248,916.81 × 115,880.41
  4. Step 4: Simplify right side
    180,396.91x = 28,844,581,998.69
  5. Step 5: Solve for x
    x = 28,844,581,998.69/180,396.91
  6. Step 6: Final answer
    x = 159,895.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.