Home / 100,416.54-138,576.24-55,093.70

Finding the Fourth Proportional to 100,416.54, 138,576.24 and 55,093.70

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Solution

The fourth proportional to 100,416.54, 138,576.24 and 55,093.70 is: 76,030.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,416.54 : 138,576.24 = 55,093.70 : x
  2. Step 2: Convert to fraction form
    100,416.54/138,576.24 = 55,093.70/x
  3. Step 3: Cross multiply
    100,416.54x = 138,576.24 × 55,093.70
  4. Step 4: Simplify right side
    100,416.54x = 7,634,677,793.69
  5. Step 5: Solve for x
    x = 7,634,677,793.69/100,416.54
  6. Step 6: Final answer
    x = 76,030.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.