Home / 183,940.32-275,929.92-78,731.04

Finding the Fourth Proportional to 183,940.32, 275,929.92 and 78,731.04

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Solution

The fourth proportional to 183,940.32, 275,929.92 and 78,731.04 is: 118,104.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,940.32 : 275,929.92 = 78,731.04 : x
  2. Step 2: Convert to fraction form
    183,940.32/275,929.92 = 78,731.04/x
  3. Step 3: Cross multiply
    183,940.32x = 275,929.92 × 78,731.04
  4. Step 4: Simplify right side
    183,940.32x = 21,724,249,568.72
  5. Step 5: Solve for x
    x = 21,724,249,568.72/183,940.32
  6. Step 6: Final answer
    x = 118,104.88

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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.