Home / 126,493.38-174,567.63-72,786.60

Finding the Fourth Proportional to 126,493.38, 174,567.63 and 72,786.60

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Solution

The fourth proportional to 126,493.38, 174,567.63 and 72,786.60 is: 100,449.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,493.38 : 174,567.63 = 72,786.60 : x
  2. Step 2: Convert to fraction form
    126,493.38/174,567.63 = 72,786.60/x
  3. Step 3: Cross multiply
    126,493.38x = 174,567.63 × 72,786.60
  4. Step 4: Simplify right side
    126,493.38x = 12,706,184,257.76
  5. Step 5: Solve for x
    x = 12,706,184,257.76/126,493.38
  6. Step 6: Final answer
    x = 100,449.40

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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.