Home / 126,639.36-174,747.12-72,941.82

Finding the Fourth Proportional to 126,639.36, 174,747.12 and 72,941.82

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Solution

The fourth proportional to 126,639.36, 174,747.12 and 72,941.82 is: 100,650.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,639.36 : 174,747.12 = 72,941.82 : x
  2. Step 2: Convert to fraction form
    126,639.36/174,747.12 = 72,941.82/x
  3. Step 3: Cross multiply
    126,639.36x = 174,747.12 × 72,941.82
  4. Step 4: Simplify right side
    126,639.36x = 12,746,372,972.56
  5. Step 5: Solve for x
    x = 12,746,372,972.56/126,639.36
  6. Step 6: Final answer
    x = 100,650.96

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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.