Home / 126,590.13-174,738.36-72,896.55

Finding the Fourth Proportional to 126,590.13, 174,738.36 and 72,896.55

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Solution

The fourth proportional to 126,590.13, 174,738.36 and 72,896.55 is: 100,622.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,590.13 : 174,738.36 = 72,896.55 : x
  2. Step 2: Convert to fraction form
    126,590.13/174,738.36 = 72,896.55/x
  3. Step 3: Cross multiply
    126,590.13x = 174,738.36 × 72,896.55
  4. Step 4: Simplify right side
    126,590.13x = 12,737,823,596.66
  5. Step 5: Solve for x
    x = 12,737,823,596.66/126,590.13
  6. Step 6: Final answer
    x = 100,622.57

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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.