Home / 165,336.40-248,134.20-76,600.90

Finding the Fourth Proportional to 165,336.40, 248,134.20 and 76,600.90

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Solution

The fourth proportional to 165,336.40, 248,134.20 and 76,600.90 is: 114,961.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,336.40 : 248,134.20 = 76,600.90 : x
  2. Step 2: Convert to fraction form
    165,336.40/248,134.20 = 76,600.90/x
  3. Step 3: Cross multiply
    165,336.40x = 248,134.20 × 76,600.90
  4. Step 4: Simplify right side
    165,336.40x = 19,007,303,040.78
  5. Step 5: Solve for x
    x = 19,007,303,040.78/165,336.40
  6. Step 6: Final answer
    x = 114,961.39

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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.