Home / 126,187.21-174,138.02-72,475.71

Finding the Fourth Proportional to 126,187.21, 174,138.02 and 72,475.71

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Solution

The fourth proportional to 126,187.21, 174,138.02 and 72,475.71 is: 100,016.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,187.21 : 174,138.02 = 72,475.71 : x
  2. Step 2: Convert to fraction form
    126,187.21/174,138.02 = 72,475.71/x
  3. Step 3: Cross multiply
    126,187.21x = 174,138.02 × 72,475.71
  4. Step 4: Simplify right side
    126,187.21x = 12,620,775,404.43
  5. Step 5: Solve for x
    x = 12,620,775,404.43/126,187.21
  6. Step 6: Final answer
    x = 100,016.28

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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.