Home / 136,822.46-188,813.21-76,394.13

Finding the Fourth Proportional to 136,822.46, 188,813.21 and 76,394.13

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Solution

The fourth proportional to 136,822.46, 188,813.21 and 76,394.13 is: 105,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,822.46 : 188,813.21 = 76,394.13 : x
  2. Step 2: Convert to fraction form
    136,822.46/188,813.21 = 76,394.13/x
  3. Step 3: Cross multiply
    136,822.46x = 188,813.21 × 76,394.13
  4. Step 4: Simplify right side
    136,822.46x = 14,424,220,528.49
  5. Step 5: Solve for x
    x = 14,424,220,528.49/136,822.46
  6. Step 6: Final answer
    x = 105,422.90

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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.