Home / 126,569.88-174,661.20-72,856.80

Finding the Fourth Proportional to 126,569.88, 174,661.20 and 72,856.80

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Solution

The fourth proportional to 126,569.88, 174,661.20 and 72,856.80 is: 100,539.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,569.88 : 174,661.20 = 72,856.80 : x
  2. Step 2: Convert to fraction form
    126,569.88/174,661.20 = 72,856.80/x
  3. Step 3: Cross multiply
    126,569.88x = 174,661.20 × 72,856.80
  4. Step 4: Simplify right side
    126,569.88x = 12,725,256,116.16
  5. Step 5: Solve for x
    x = 12,725,256,116.16/126,569.88
  6. Step 6: Final answer
    x = 100,539.37

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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.