Home / 126,850.02-174,986.66-78,436.47

Finding the Fourth Proportional to 126,850.02, 174,986.66 and 78,436.47

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Solution

The fourth proportional to 126,850.02, 174,986.66 and 78,436.47 is: 108,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,850.02 : 174,986.66 = 78,436.47 : x
  2. Step 2: Convert to fraction form
    126,850.02/174,986.66 = 78,436.47/x
  3. Step 3: Cross multiply
    126,850.02x = 174,986.66 × 78,436.47
  4. Step 4: Simplify right side
    126,850.02x = 13,725,336,706.03
  5. Step 5: Solve for x
    x = 13,725,336,706.03/126,850.02
  6. Step 6: Final answer
    x = 108,201.30

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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.