Home / 112,675.88-155,447.17-64,903.64

Finding the Fourth Proportional to 112,675.88, 155,447.17 and 64,903.64

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Solution

The fourth proportional to 112,675.88, 155,447.17 and 64,903.64 is: 89,540.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,675.88 : 155,447.17 = 64,903.64 : x
  2. Step 2: Convert to fraction form
    112,675.88/155,447.17 = 64,903.64/x
  3. Step 3: Cross multiply
    112,675.88x = 155,447.17 × 64,903.64
  4. Step 4: Simplify right side
    112,675.88x = 10,089,086,221.20
  5. Step 5: Solve for x
    x = 10,089,086,221.20/112,675.88
  6. Step 6: Final answer
    x = 89,540.78

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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.