Home / 126,616.36-174,774.54-72,922.78

Finding the Fourth Proportional to 126,616.36, 174,774.54 and 72,922.78

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Solution

The fourth proportional to 126,616.36, 174,774.54 and 72,922.78 is: 100,658.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,616.36 : 174,774.54 = 72,922.78 : x
  2. Step 2: Convert to fraction form
    126,616.36/174,774.54 = 72,922.78/x
  3. Step 3: Cross multiply
    126,616.36x = 174,774.54 × 72,922.78
  4. Step 4: Simplify right side
    126,616.36x = 12,745,045,330.02
  5. Step 5: Solve for x
    x = 12,745,045,330.02/126,616.36
  6. Step 6: Final answer
    x = 100,658.76

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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.