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Finding the Fourth Proportional to 126,393.84, 174,422.43 and 69,804

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Solution

The fourth proportional to 126,393.84, 174,422.43 and 69,804 is: 96,328.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,393.84 : 174,422.43 = 69,804 : x
  2. Step 2: Convert to fraction form
    126,393.84/174,422.43 = 69,804/x
  3. Step 3: Cross multiply
    126,393.84x = 174,422.43 × 69,804
  4. Step 4: Simplify right side
    126,393.84x = 12,175,383,303.72
  5. Step 5: Solve for x
    x = 12,175,383,303.72/126,393.84
  6. Step 6: Final answer
    x = 96,328.93

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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.