Home / 126,485.55-174,407.85-86,222.88

Finding the Fourth Proportional to 126,485.55, 174,407.85 and 86,222.88

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Solution

The fourth proportional to 126,485.55, 174,407.85 and 86,222.88 is: 118,890.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,485.55 : 174,407.85 = 86,222.88 : x
  2. Step 2: Convert to fraction form
    126,485.55/174,407.85 = 86,222.88/x
  3. Step 3: Cross multiply
    126,485.55x = 174,407.85 × 86,222.88
  4. Step 4: Simplify right side
    126,485.55x = 15,037,947,121.61
  5. Step 5: Solve for x
    x = 15,037,947,121.61/126,485.55
  6. Step 6: Final answer
    x = 118,890.63

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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.