Home / 126,083.61-173,939.27-72,355.77

Finding the Fourth Proportional to 126,083.61, 173,939.27 and 72,355.77

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Solution

The fourth proportional to 126,083.61, 173,939.27 and 72,355.77 is: 99,818.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,083.61 : 173,939.27 = 72,355.77 : x
  2. Step 2: Convert to fraction form
    126,083.61/173,939.27 = 72,355.77/x
  3. Step 3: Cross multiply
    126,083.61x = 173,939.27 × 72,355.77
  4. Step 4: Simplify right side
    126,083.61x = 12,585,509,452.31
  5. Step 5: Solve for x
    x = 12,585,509,452.31/126,083.61
  6. Step 6: Final answer
    x = 99,818.76

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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.