Home / 126,051.36-173,942.98-72,340.80

Finding the Fourth Proportional to 126,051.36, 173,942.98 and 72,340.80

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Solution

The fourth proportional to 126,051.36, 173,942.98 and 72,340.80 is: 99,825.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,051.36 : 173,942.98 = 72,340.80 : x
  2. Step 2: Convert to fraction form
    126,051.36/173,942.98 = 72,340.80/x
  3. Step 3: Cross multiply
    126,051.36x = 173,942.98 × 72,340.80
  4. Step 4: Simplify right side
    126,051.36x = 12,583,174,327.58
  5. Step 5: Solve for x
    x = 12,583,174,327.58/126,051.36
  6. Step 6: Final answer
    x = 99,825.77

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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.