Home / 100,416.55-138,576.24-55,093.69

Finding the Fourth Proportional to 100,416.55, 138,576.24 and 55,093.69

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Solution

The fourth proportional to 100,416.55, 138,576.24 and 55,093.69 is: 76,030.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,416.55 : 138,576.24 = 55,093.69 : x
  2. Step 2: Convert to fraction form
    100,416.55/138,576.24 = 55,093.69/x
  3. Step 3: Cross multiply
    100,416.55x = 138,576.24 × 55,093.69
  4. Step 4: Simplify right side
    100,416.55x = 7,634,676,407.93
  5. Step 5: Solve for x
    x = 7,634,676,407.93/100,416.55
  6. Step 6: Final answer
    x = 76,030.06

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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.