Home / 185,577.03-278,406.54-78,955.31

Finding the Fourth Proportional to 185,577.03, 278,406.54 and 78,955.31

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Solution

The fourth proportional to 185,577.03, 278,406.54 and 78,955.31 is: 118,450.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,577.03 : 278,406.54 = 78,955.31 : x
  2. Step 2: Convert to fraction form
    185,577.03/278,406.54 = 78,955.31/x
  3. Step 3: Cross multiply
    185,577.03x = 278,406.54 × 78,955.31
  4. Step 4: Simplify right side
    185,577.03x = 21,981,673,279.69
  5. Step 5: Solve for x
    x = 21,981,673,279.69/185,577.03
  6. Step 6: Final answer
    x = 118,450.40

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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.