Home / 177,320.80-265,765.20-77,269.60

Finding the Fourth Proportional to 177,320.80, 265,765.20 and 77,269.60

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Solution

The fourth proportional to 177,320.80, 265,765.20 and 77,269.60 is: 115,810.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,320.80 : 265,765.20 = 77,269.60 : x
  2. Step 2: Convert to fraction form
    177,320.80/265,765.20 = 77,269.60/x
  3. Step 3: Cross multiply
    177,320.80x = 265,765.20 × 77,269.60
  4. Step 4: Simplify right side
    177,320.80x = 20,535,570,697.92
  5. Step 5: Solve for x
    x = 20,535,570,697.92/177,320.80
  6. Step 6: Final answer
    x = 115,810.28

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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.