Home / 126,371.64-174,392.82-72,667.20

Finding the Fourth Proportional to 126,371.64, 174,392.82 and 72,667.20

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Solution

The fourth proportional to 126,371.64, 174,392.82 and 72,667.20 is: 100,280.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,371.64 : 174,392.82 = 72,667.20 : x
  2. Step 2: Convert to fraction form
    126,371.64/174,392.82 = 72,667.20/x
  3. Step 3: Cross multiply
    126,371.64x = 174,392.82 × 72,667.20
  4. Step 4: Simplify right side
    126,371.64x = 12,672,637,929.50
  5. Step 5: Solve for x
    x = 12,672,637,929.50/126,371.64
  6. Step 6: Final answer
    x = 100,280.71

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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.