Home / 115,687.20-173,239.20-76,029.60

Finding the Fourth Proportional to 115,687.20, 173,239.20 and 76,029.60

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Solution

The fourth proportional to 115,687.20, 173,239.20 and 76,029.60 is: 113,852.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,687.20 : 173,239.20 = 76,029.60 : x
  2. Step 2: Convert to fraction form
    115,687.20/173,239.20 = 76,029.60/x
  3. Step 3: Cross multiply
    115,687.20x = 173,239.20 × 76,029.60
  4. Step 4: Simplify right side
    115,687.20x = 13,171,307,080.32
  5. Step 5: Solve for x
    x = 13,171,307,080.32/115,687.20
  6. Step 6: Final answer
    x = 113,852.76

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1.5x scale

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.