Home / 186,419.04-279,517.96-74,038.80

Finding the Fourth Proportional to 186,419.04, 279,517.96 and 74,038.80

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Solution

The fourth proportional to 186,419.04, 279,517.96 and 74,038.80 is: 111,014.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,419.04 : 279,517.96 = 74,038.80 : x
  2. Step 2: Convert to fraction form
    186,419.04/279,517.96 = 74,038.80/x
  3. Step 3: Cross multiply
    186,419.04x = 279,517.96 × 74,038.80
  4. Step 4: Simplify right side
    186,419.04x = 20,695,174,336.85
  5. Step 5: Solve for x
    x = 20,695,174,336.85/186,419.04
  6. Step 6: Final answer
    x = 111,014.27

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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.