Home / 126,461.64-189,636.30-67,284.84

Finding the Fourth Proportional to 126,461.64, 189,636.30 and 67,284.84

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Solution

The fourth proportional to 126,461.64, 189,636.30 and 67,284.84 is: 100,897.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,461.64 : 189,636.30 = 67,284.84 : x
  2. Step 2: Convert to fraction form
    126,461.64/189,636.30 = 67,284.84/x
  3. Step 3: Cross multiply
    126,461.64x = 189,636.30 × 67,284.84
  4. Step 4: Simplify right side
    126,461.64x = 12,759,648,103.69
  5. Step 5: Solve for x
    x = 12,759,648,103.69/126,461.64
  6. Step 6: Final answer
    x = 100,897.38

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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.